PI74FCT890T
HIGH-SPEED INVERTED HEX DRIVER
1
PS2027A03/11/96
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Product Description:
Pericom Semiconductor’s PI74FCT series of logic circuits are pro-
duced in the Company’s advanced 0.8 micron CMOS technology,
achieving industry leading speed grades.
The PI74FCT890T is a very high-speed, high-drive inverting hex
driver capable of providing high-current drive into large capacitive
loads. The device can be used as an inverting clock or DRAM
driver, as well as high-speed buffer.
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PI74FCT890T
High-Speed Inverted Hex Driver
Logic Block Diagram
Product Pin Configurations
Pin Name
Description
IN
0
-
IN6
Data Inputs
OUT
0
-
OUT6
Data Outputs
Strobe
Strobe Input
GND
Ground
V
CC
Power
Product Pin Description
Inputs
Outputs
STB
IN
OUT
L
X
H
H
L
H
H
H
L
Note:
1. H = High Voltage Level
L = Low Voltage Level
X = Don't Care
Truth Table
(1)
Product Features:
• High Drive Capability
I
OL
=100 mA
I
OH
= –32 mA with capacitive loads up to 150 pF
• TTL input and output levels
• Extremely low static power
• Hysteresis on all inputs
• ESD protection exceeds 2000V
• Industrial operating temperature range: –40°C to +85°C
• Packages available:
– 16-pin 300 mil wide plastic DIP (P)
– 20-pin plastic PLCC (J)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
IN6
OUT6
OUT5
IN5
IN4
OUT4
Strobe
GND
IN1
OUT1
OUT2
IN2
IN3
OUT3
GND
16-PIN
P16
19
20
1
2
3
18
17
16
15
14
12
13
4
5
6
7
8
OUT3
GND
VCC
STB
OUT4
OUT1
OUT2
GND
IN2
IN3
OUT6
OUT5
GND
IN5
IN4
IN1
GND
VCC
VCC
IN6
9
10 11
20-PIN
J20
IN1
OUT1
IN2
OUT2
IN3
OUT3
IN4
OUT4
IN5
OUT5
IN6
OUT6
Strobe
PI74FCT890T
HIGH-SPEED INVERTED HEX DRIVER
2
PS2027A 03/11/96
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Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ................................................................. –65°C to +150°C
Ambient Temperature with Power Applied ................................. -40°C to +85°C
Supply Voltage to Ground Potential (Inputs & Vcc Only) .......... –0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ....... –0.5V to +7.0V
DC Input Voltage ......................................................................... –0.5V to +7.0V
DC Output Current ................................................................................... 120 mA
Power Dissipation ......................................................................................... 0.5W
Note:
Stresses greater than those listed under
MAXIMUM RATINGS may cause permanent
damage to the device. This is a stress rating
only and functional operation of the device at
these or any other conditions above those
indicated in the operational sections of this
specification is not implied. Exposure to
absolute maximum rating conditions for
extended periods may affect reliability.
DC Electrical Characteristics
(Over the Operating Range, T
A
= –40°C to +85°C, V
CC
= 5.0V ± 5%)
Parameters Description
Test Conditions
(1)
Min.
Typ
(2)
Max.
Units
V
OH
Output HIGH Voltage
V
CC
= Min., V
IN
= V
IH
or V
IL
I
OH
= –32.0 mA
2.4
3.0
V
V
OL
Output LOW Voltage
V
CC
= Min., V
IN
= V
IH
or V
IL
I
OL
= 100 mA
0.3
0.55
V
V
IH
Input HIGH Voltage
Guaranteed Logic HIGH Level
2.0
V
V
IL
Input LOW Voltage
Guaranteed Logic LOW Level
0.8
V
I
IH
Input HIGH Current
V
CC
= Max., V
IN
= V
CC
Except I/O Pins
1
µA
I/O Pins
1
I
IL
Input LOW Current
V
CC
= Max., V
IN
= GND
Except I/O Pins
–1
µA
I/O Pins
–1
V
IK
Clamp Diode Voltage
V
CC
= Min., I
IN
= –18 mA
–0.7
–1.2
V
I
OS
Short Circuit Current
V
CC
= Max.
(3)
, V
OUT
= GND
–60
–120
mA
I
OFF
Power Down Disable
V
CC
= GND, V
OUT
= 4.5V
—
—
100
µA
V
H
Input Hysteresis
200
mV
Capacitance
(T
A
= 25°C, f = 1 MHz)
Parameters
(4)
Description
Test Conditions
Typ
Max.
Units
C
IN
Input Capacitance
V
IN
= 0V
6
10
pF
C
OUT
Output Capacitance
V
OUT
= 0V
8
12
pF
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 5.0V, +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is determined by device characterization but is not production tested.
PI74FCT890T
HIGH-SPEED INVERTED HEX DRIVER
3
PS2027A03/11/96
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Power Supply Characteristics
Parameters Description
Test Conditions
(1)
Min.
Typ
(2)
Max.
Units
I
CC
Quiescent Power
V
CC
= Max.
V
IN
= GND
0.1
10
µA
Supply Current
or V
CC
∆
I
CC
Supply Current per
V
CC
= Max.
V
IN
= 3.4V
(3)
0.5
2.5
mA
Input @ TTL HIGH
I
CCD
Supply Current per
V
CC
= Max.,
V
IN
= V
CC
0.15
0.25
mA/
Input per MHz
(4)
Outputs Open
V
IN
= GND
MHz
One Input Toggling
50% Duty Cycle
I
C
Total Power Supply
V
CC
= Max.,
V
IN
= V
CC
2.0
4.0
(5)
mA
Current
(6)
Outputs Open
V
IN
= GND
f
CP
= 10 MH
Z
50% Duty Cycle
V
IN
= 3.4V
2.5
6.0
(5)
f
I
= 5 MH
Z
V
IN
= GND
One Bit Toggling
V
CC
= Max.,
V
IN
= V
CC
4.3
7.8
(5)
Outputs Open
V
IN
= GND
f
CP
= 10 MH
Z
50% Duty Cycle
V
IN
= 3.4V
6.5
16.8
(5)
Eight Bits Toggling
V
IN
= GND
f
I
= 2.5 MH
Z
50% Duty Cycle
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Per TTL driven input (V
IN
= 3.4V); all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. I
C
=I
QUIESCENT
+ I
INPUTS
+ I
DYNAMIC
I
C
= I
CC
+
∆
I
CC
D
H
N
T
+ I
CCD
(f
CP
/2 + f
I
N
I
)
I
CC
= Quiescent Current
∆
I
CC
= Power Supply Current for a TTL High Input (V
IN
= 3.4V)
D
H
= Duty Cycle for TTL Inputs High
N
T
= Number of TTL Inputs at D
H
I
CCD
= Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
f
CP
= Clock Frequency for Register Devices (Zero for Non-Register Devices)
f
I
= Input Frequency
N
I
= Number of Inputs at f
I
All currents are in milliamps and all frequencies are in megahertz.
PI74FCT890T
HIGH-SPEED INVERTED HEX DRIVER
4
PS2027A 03/11/96
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Switching Characteristics over Operating Range
890T
C o m .
Parameters
Description
Conditions
(1)
Min
Max
Unit
t
PLH
Propagation Delay, Data
C
L
= 150 pF
3.0
9.0
ns
t
PHL
& Strobe to Low-to-High
R
L
= 500
Ω
Notes:
1. See test circuit and wave forms.
2. Input pulse is supplied by a generator with the following characteristics: PRR = 1 MHz, Z
OUT
= 50, and tr & tf < 2.0 ns
3. C
L
includes probe and jig capacitance.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com