CD74HC27 Datasheet, PDF (1/7 Pages) Texas Instruments – High Speed CMOS Logic Triple 3-Input NOR Gate

Data sheet acquired from Harris Semiconductor
SCHS132
August 1997
CD74HC27,
CD74HCT27
High Speed CMOS Logic
Triple 3-Input NOR Gate
[ /Title
(CD74
HC27,
CD74
HCT27
)
/Sub-
ject
(High
Speed
CMOS
Logic
Features
Description
• Buffered Inputs
•
Typical Propagation Delay:
C_L = 15pF, T_A = 25^oC
7ns
at
V_CC
=
5V,
• Fanout (Over Temperature Range)
- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . . -55^oC to 125^oC
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: N_IL = 30%, N_IH = 30% of V_CC
at V_CC = 5V
• HCT Types
- 4.5V to 5.5V Operation
- Direct LSTTL Input Logic Compatibility,
V_IL= 0.8V (Max), V_IH = 2V (Min)
- CMOS Input Compatibility, I_l ≤ 1µA at V_OL, V_OH
The Harris CD74HC27, CD74HCT27, logic gates utilize
silicon gate CMOS technology to achieve operating speeds
similar to LSTTL gates with the low power consumption of
standard CMOS integrated circuits. All devices have the
ability to drive 10 LSTTL loads. The 74HCT logic family is
functionally pin compatible with the standard 74LS logic
family.
Ordering Information
TEMP. RANGE
PART NUMBER
(^oC)
PACKAGE
PKG.
NO.
CD74HC27E
-55 to 125 14 Ld PDIP
E14.3
CD74HCT27E
-55 to 125 14 Ld PDIP
E14.3
CD74HC27M
-55 to 125 14 Ld SOIC
M14.15
CD74HCT27M
-55 to 125 14 Ld SOIC
M14.15
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Die for this part number is available which meets all electrical
specifications. Please contact your local sales office or Harris
customer service for ordering information.
Pinout
CD74HC27, CD74HCT27
(PDIP, SOIC)
TOP VIEW
1A 1
1B 2
2A 3
2B 4
2C 5
2Y 6
GND 7
14 V_CC
13 1C
12 1Y
11 3C
10 3B
9 3A
8 3Y
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright © Harris Corporation 1997
1
File Number 1648.1