TLC555, TLC555Y
LinCMOS
™
TIMERS
SLFS043C – SEPTEMBER 1983 – REVISED SEPTEMBER 1997
1
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
D
Very Low Power Consumption
1 mW Typ at V
DD
= 5 V
D
Capable of Operation in Astable Mode
D
CMOS Output Capable of Swinging Rail
to Rail
D
High Output-Current Capability
Sink 100 mA Typ
Source 10 mA Typ
D
Output Fully Compatible With CMOS, TTL,
and MOS
D
Low Supply Current Reduces Spikes
During Output Transitions
D
Single-Supply Operation From 2 V to 15 V
D
Functionally Interchangeable With the
NE555; Has Same Pinout
D
ESD Protection Exceeds 2000 V Per
MIL-STD-883C, Method 3015.2
description
The TLC555 is a monolithic timing circuit
fabricated using the TI LinCMOS
™
process. The
timer is fully compatible with CMOS, TTL, and
MOS logic and operates at frequencies up to 2 MHz. Because of its high input impedance, this device uses
smaller timing capacitors than those used by the NE555. As a result, more accurate time delays and oscillations
are possible. Power consumption is low across the full range of power supply voltage.
Like the NE555, the TLC555 has a trigger level equal to approximately one-third of the supply voltage and a
threshold level equal to approximately two-thirds of the supply voltage. These levels can be altered by use of
the control voltage terminal (CONT). When the trigger input (TRIG) falls below the trigger level, the flip-flop is
set and the output goes high. If TRIG is above the trigger level and the threshold input (THRES) is above the
threshold level, the flip-flop is reset and the output is low. The reset input (RESET) can override all other inputs
and can be used to initiate a new timing cycle. If RESET is low, the flip-flop is reset and the output is low.
Whenever the output is low, a low-impedance path is provided between the discharge terminal (DISCH) and
GND. All unused inputs should be tied to an appropriate logic level to prevent false triggering.
While the CMOS output is capable of sinking over 100 mA and sourcing over 10 mA, the TLC555 exhibits greatly
reduced supply-current spikes during output transitions. This minimizes the need for the large decoupling
capacitors required by the NE555.
The TLC555C is characterized for operation from 0
°
C to 70
°
C. The TLC555I is characterized for operation from
– 40
°
C to 85
°
C. The TLC555M is characterized for operation over the full military temperature range of – 55
°
C
to 125
°
C.
This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields. These
circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to MIL-STD-883C,
Method 3015; however, it is advised that precautions be taken to avoid application of any voltage higher than maximum-rated
voltages to these high-impedance circuits. During storage or handling, the device leads should be shorted together or the device
should be placed in conductive foam. In a circuit, unused inputs should always be connected to an appropriated logic voltage level,
preferably either supply voltage or ground. Specific guidelines for handling devices of this type are contained in the publication
Guidelines for Handling Electrostatic-Discharge-Sensitive (ESDS) Devices and Assemblies available from Texas Instruments.
LinCMOS is a trademark of Texas Instruments Incorporated.
Copyright
©
1997, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
NC
DISCH
NC
THRES
NC
NC
TRIG
NC
OUT
NC
FK PACKAGE
(TOP VIEW)
NC
GND
NC
CONT
NC
V
NC
RESET
NC
NC
DD
D, DB, JG, P, OR PW PACKAGE
(TOP VIEW)
1
2
3
4
8
7
6
5
GND
TRIG
OUT
RESET
V
DD
DISCH
THRES
CONT
NC – No internal connection
TLC555, TLC555Y
LinCMOS
™
TIMERS
SLFS043C – SEPTEMBER 1983 – REVISED SEPTEMBER 1997
2
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
AVAILABLE OPTIONS
PACKAGED DEVICES
CHIP
TA
VDD
RANGE
SMALL
OUTLINE
(D)
SSOP
(DB)
CHIP
CARRIER
(FK)
CERAMIC
DIP
(JG)
PLASTIC
DIP
(P)
TSSOP
(PW)
CHIP
FORM
(Y)
0
°
C to
70
°
C
2 V to 15 V
TLC555CD
TLC555CDBLE
—
—
TLC555CP
TLC555CPWLE
– 40
°
C to
85
°
C
3 V to 15 V
TLC555ID
—
—
—
TLC555IP
—
TLC555Y
– 55
°
C to
125
°
C
5 V to 15 V
TLC555MD
—
TLC555MFK
TLC555MJG
TLC555MP
—
The D package is available taped and reeled. Add the R suffix to device type (e.g., TLC555CDR). The DB and PW packages are only available
left-end taped and reeled (indicated by the LE suffix on the device type; e.g., TLC555CDBLE). Chips are tested at 25
°
C.
FUNCTION TABLE
RESET
VOLTAGE†
TRIGGER
VOLTAGE†
THRESHOLD
VOLTAGE†
OUTPUT
DISCHARGE
SWITCH
<MIN
Irrelevant
Irrelevant
L
On
>MAX
<MIN
Irrelevant
H
Off
>MAX
>MAX
>MAX
L
On
>MAX
>MAX
<MIN
As previously established
† For conditions shown as MIN or MAX, use the appropriate value specified under
electrical characteristics.
functional block diagram
GND
RESET
CONT
VDD
1
THRES
TRIG
R
R
R
DISCH
OUT
S
R
R1
Pin numbers are for all packages except the FK package.
RESET can override TRIG, which can override THRES.
5
6
2
1
7
3
4
8
TLC555, TLC555Y
LinCMOS
™
TIMERS
SLFS043C – SEPTEMBER 1983 – REVISED SEPTEMBER 1997
3
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TLC555Y chip information
This chip, when properly assembled, displays characteristics similar to the TLC555. Thermal compression or
ultrasonic bonding may be used on the doped aluminum bonding pads. Chips may be mounted with conductive
epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
50
64
RESET can override TRIG, which can override THRES.
CHIP THICKNESS: 15 TYPICAL
BONDING PADS: 4
×
4 MINIMUM
TJmax = 150
°
C
TOLERANCES ARE
±
10%.
ALL DIMENSIONS ARE IN MILS.
PIN (1) IS INTERNALLY CONNECTED
TO BACKSIDE OF CHIP.
GND
RESET
CONT
VDD
1
THRES
TRIG
R
R
R
DISCH
OUT
S
R
R1
(5)
(6)
(2)
(1)
(7)
(3)
(8)
(4)
TLC555, TLC555Y
LinCMOS
SLFS043C – SEPTEMBER 1983 – REVISED SEPTEMBER 1997
T
emp
late
R
e
lease
D
ate:
7
–
11
–
94
TIMERS
™
4
POST
OFFICE BOX 655303 DALLAS,
TEXAS
75265
•
equivalent schematic (each channel)
THRES
CONT
TRIG
RESET
VDD
DISCH
OUT
GND
Transistors
COMPONENT COUNT
Resistors
39
5
TLC555, TLC555Y
LinCMOS
™
TIMERS
SLFS043C – SEPTEMBER 1983 – REVISED SEPTEMBER 1997
5
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
DD
(see Note 1)
18 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
(any input)
– 0.3 to V
DD
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sink current, discharge or output
150 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Source current, output, I
O
15 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation
See Dissipation Rating Table
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
: C-suffix 0
°
C to 70
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I-suffix – 40
°
C to 85
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
M-suffix – 55
°
C to 125
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
– 65
°
C to 150
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Case temperature for 60 seconds: FK package
260
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: JG package
300
°
C
. . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D, DB, P, or PW package
260
°
C
. . . . . . . .
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to network GND.
DISSIPATION RATING TABLE
PACKAGE
TA
≤
25
°
C
POWER RATING
DERATING FACTOR
ABOVE TA = 25
°
C
TA = 70
°
C
POWER RATING
TA = 85
°
C
POWER RATING
TA = 125
°
C
POWER RATING
D
DB
FK
JG
P
PW
725 mW
525 mW
1375 mW
1050 mW
1000 mW
525 mW
5.8 mW/
°
C
4.2 mW/
°
C
11.0 mW/
°
C
8.4 mW/
°
C
8.0 mW/
°
C
4.2 mW/
°
C
464 mW
336 mW
880 mW
672 mW
640 mW
336 mW
377 mW
273 mW
715 mW
546 mW
520 mW
273 mW
145 mW
105 mW
275 mW
210 mW
200 mW
105 mW
recommended operating conditions
MIN
MAX
UNIT
Supply voltage, VDD
2
15
V
TLC555C
0
70
Operating free-air temperature range, TA
TLC555I
– 40
85
°
C
TLC555M
– 55
125
TLC555, TLC555Y
LinCMOS
™
TIMERS
SLFS043C – SEPTEMBER 1983 – REVISED SEPTEMBER 1997
6
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, V
DD
= 2 V for TLC555C, V
DD
= 3 V for
TLC555I
PARAMETER
TEST
TA†
TLC555C
TLC555I
UNIT
PARAMETER
CONDITIONS
TA†
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIT
Threshold voltage
25
°
C
0.95
1.33
1.65
1.6
2.4
V
VIT
Threshold voltage
Full range
0.85
1.75
1.5
2.5
V
IIT
Threshold current
25
°
C
10
10
pA
IIT
Threshold current
MAX
75
150
pA
VI(TRIG)
Trigger voltage
25
°
C
0.4
0.67
0.95
0.71
1
1.29
V
VI(TRIG)
Trigger voltage
Full range
0.3
1.05
0.61
1.39
V
II(TRIG)
Trigger current
25
°
C
10
10
pA
II(TRIG)
Trigger current
MAX
75
150
pA
VI(RESET)
Reset voltage
25
°
C
0.4
1.1
1.5
0.4
1.1
1.5
V
VI(RESET)
Reset voltage
Full range
0.3
2
0.3
1.8
V
II(RESET)
Reset current
25
°
C
10
10
pA
II(RESET)
Reset current
MAX
75
150
pA
Control voltage (open circuit) as
a percentage of supply voltage
MAX
66.7%
66.7%
Discharge switch on-stage
IOL = 1 mA
25
°
C
0.03
0.2
0.03
0.2
V
g
g
voltage
IOL = 1 mA
Full range
0.25
0.375
V
Discharge switch off-stage
25
°
C
0.1
0.1
nA
g
g
current
MAX
0.5
120
nA
VOH
High level output voltage
IOH = 300
µ
A
25
°
C
1.5
1.9
1.5
1.9
V
VOH
High-level output voltage
IOH = – 300
µ
A
Full range
1.5
2.5
V
VOL
Low level output voltage
IOL = 1 mA
25
°
C
0.07
0.3
0.07
0.3
V
VOL
Low-level output voltage
IOL = 1 mA
Full range
0.35
0.4
V
IDD
Supply current
See Note 2
25
°
C
250
250
µ
A
IDD
Supply current
See Note 2
Full range
400
500
µ
A
† Full range is 0
°
C to 70
°
C for the TLC555C and – 40
°
C to 85
°
C for the TLC555I. For conditions shown as MAX, use the appropriate value specified
in the recommended operating conditions table.
NOTE 2: These values apply for the expected operating configurations in which THRES is connected directly to DISCH or to TRIG.
TLC555, TLC555Y
LinCMOS
™
TIMERS
SLFS043C – SEPTEMBER 1983 – REVISED SEPTEMBER 1997
7
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, V
DD
= 5 V
PARAMETER
TEST
T †
TLC555C
TLC555I
TLC555M
UNIT
PARAMETER
CONDITIONS
TA†
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIT
Threshold voltage
25
°
C
2.8
3.3
3.8
2.8
3.3
3.8
2.8
3.3
3.8
V
VIT
Threshold voltage
Full range
2.7
3.9
2.7
3.9
2.7
3.9
V
I
IT
Threshold current
25
°
C
10
10
10
pA
I
IT
Threshold current
MAX
75
150
5000
pA
VI(TRIG)
Trigger voltage
25
°
C
1.36
1.66
1.96
1.36
1.66
1.96
1.36
1.66
1.96
V
VI(TRIG)
Trigger voltage
Full range
1.26
2.06
1.26
2.06
1.26
2.06
V
II(TRIG)
Trigger current
25
°
C
10
10
10
pA
II(TRIG)
Trigger current
MAX
75
150
5000
pA
VI(RESET) Reset voltage
25
°
C
0.4
1.1
1.5
0.4
1.1
1.5
0.4
1.1
1.5
V
VI(RESET) Reset voltage
Full range
0.3
1.8
0.3
1.8
0.3
1.8
V
II(RESET)
Reset current
25
°
C
10
10
10
pA
II(RESET)
Reset current
MAX
75
150
5000
pA
Control voltage (open
circuit) as a
percentage of supply
voltage
MAX
66.7%
66.7%
66.7%
Discharge switch
IOL = 10 mA
25
°
C
0.14
0.5
0.14
0.5
0.14
0.5
V
g
on-state voltage
IOL = 10 mA
Full range
0.6
0.6
0.6
V
Discharge switch
25
°
C
0.1
0.1
0.1
nA
g
off-state current
MAX
0.5
120
120
nA
VOH
High-level output
IOH =
1 mA
25
°
C
4.1
4.8
4.1
4.8
4.1
4.8
V
VOH
g
voltage
IOH = – 1 mA
Full range
4.1
4.1
4.1
V
IOL = 8 mA
25
°
C
0.21
0.4
0.21
0.4
0.21
0.4
IOL = 8 mA
Full range
0.5
0.5
0.6
VOL
Low-level output
IOL = 5 mA
25
°
C
0.13
0.3
0.13
0.3
0.13
0.3
V
VOL
voltage
IOL = 5 mA
Full range
0.4
0.4
0.45
V
IOL = 3 2 mA
25
°
C
0.08
0.3
0.08
0.3
0.08
0.3
IOL = 3.2 mA
Full range
0.35
0.35
0.4
IDD
Supply current
See Note 2
25
°
C
170
350
170
350
170
350
µ
A
IDD
Supply current
See Note 2
Full range
500
600
700
µ
A
† Full range is 0
°
C to 70
°
C the for TLC555C, – 40
°
C to 85
°
C for the TLC555I, and – 55
°
C to 125
°
C for the TLC555M. For conditions shown as
MAX, use the appropriate value specified in the recommended operating conditions table.
NOTE 2: These values apply for the expected operating configurations in which THRES is connected directly to DISCH or TRIG.
TLC555, TLC555Y
LinCMOS
™
TIMERS
SLFS043C – SEPTEMBER 1983 – REVISED SEPTEMBER 1997
8
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, V
DD
= 15 V
PARAMETER
TEST
TA†
TLC555C
TLC555I
TLC555M
UNIT
PARAMETER
CONDITIONS
TA†
MIN
TYP
MAX
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIT
Threshold voltage
25
°
C
9.45
10
10.55
9.45
10
10.55
9.45
10
10.55
V
VIT
Threshold voltage
Full range
9.35
10.65
9.35
10.65
9.35
10.65
V
IIT
Threshold current
25
°
C
10
10
10
pA
IIT
Threshold current
MAX
75
150
5000
pA
VI(TRIG)
Trigger voltage
25
°
C
4.65
5
5.35
4.65
5
5.35
4.65
5
5.35
V
VI(TRIG)
Trigger voltage
Full range
4.55
5.45
4.55
5.45
4.55
5.45
V
II(TRIG)
Trigger current