Fairchild 74F132 service manual
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74F132
Quad 2-Input NAND Schmitt Trigger
74F132 Quad 2-Input NAND Schmitt Trigger
April 1988
Revised July 1999
General Description
The F132 contains four 2-input NAND gates which accept
standard TTL input signal s and provide standard TTL ou tput levels. They are c apable o f transf orming slowly ch anging input signals into sharply defined, jitter-free output
signals. In addition, they have a gre ater noise mar gin than
conventional NAND gates.
Each circuit contains a 2-input Sch mitt Trigger fol lowed by
level shifting circuitry and a sta ndard FAST output struc-
ture. The Schmitt Trigger uses positive feedback to effectively speed-up slow inp ut t ran siti on s, an d p rov ide d ifferen t
input threshold voltages for positive and negative-going
transitions. This hyst ere sis b etw e en th e pos iti ve- goin g and
negative-going input threshold (ty pically 800 mV) is determined by resistor ratios and is essentially insensitive to
temperature and supply voltage variations.
Ordering Code:
Order Number Package Number Package Description
74F132SC M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
74F132SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F132PC N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also availab le in Tape and Reel. Specify by appending th e s uffix let t er “X” to the ordering cod e.
Logic Symbol
IEEE/IEC
Connection Diagram
Unit Loading/Fan Out
Pin Names Description
An, B
O
n
FAST is a regist ered trademark of Fair c hild Semiconductor Corporation
© 1999 Fairchild Semiconductor Corporation DS009477 www.fairchildsemi.com
Inputs 1.0/1.0 20 µA/−0.6 mA
n
Outputs 50/33.3 −1 mA/20 mA
U.L. Input I
HIGH/LOW Output IOH/I
IH/IIL
Function Table
OL
H = HIGH Voltage Level
L = LOW Voltage Level
Inputs Outputs
AB O
LL H
LH H
HL H
HH L
Absolute Maximum Ratings(Note 1) Recommended Operating
Storage Temperature −65°C to +150°C
74F132
Ambient Temperature under Bias −55°C to +125°C
Junction Temperature under Bias −55°C to +150°C
Pin Potential to Ground Pin −0.5V to +7.0V
V
CC
Input Voltage (Note 2) −0.5V to +7.0V
Input Current (Note 2) −30 mA to +5.0 mA
Voltage Applied to Output
in HIGH State (with V
CC
= 0V)
Standard Output −0.5V to V
3-STATE Output −0.5V to +5.5V
Current Applied to Output
in LOW State (Max) twice the rated I
ESD Last Passing Voltage (Min) 4000V
OL
Conditions
Free Air Ambient Temperature 0°C to +70°C
Supply Voltage +4.5V to +5.5V
Note 1: Absolute maximum ratings are values beyond which the device
CC
may be damaged or have its useful life impaired. Functional operation
under these conditi ons is not implied.
Note 2: Either voltage limit or curren t limit is sufficient to protect in put s .
(mA)
DC Electrical Characteristics
Symbol Parameter Min Typ Max Units
V
V
∆V
V
V
V
I
I
I
V
I
I
I
I
I
T+
T−
CD
OH
OL
IH
BVI
CEX
ID
OD
IL
OS
CCH
CCL
Positive-going Threshold 1.5 2.0 V 5.0
Negative-going Threshold 0.7 1.1 V 5.0
Hysteresis (V
T
Input Clamp Diode Voltage −1.2 V Min IIN = −18 mA
Output HIGH 10% V
Voltage 5% V
Output LOW Voltage 10% V
Input HIGH Current 5.0 µAMaxVIN = 2.7V
Input HIGH Current Breakdown Test 7.0 µAMaxVIN = 7.0V
Output HIGH Leakage Current 50 µAMaxV
Input Leakage T est
Output Leakage Circuit Current
Input LOW Current −0.6 mA Max VIN = 0.5V
Output Short-Circuit Current −60 −150 mA Max V
Power Supply Current 17.0 mA Max VO = HIGH
Power Supply Current 18.0 mA Max VO = LOW
+
−
− V
)0.4 V5.0
T
T
2.5 V Min IOH = −1 mA
CC
CC
2.7 IOH = −1 mA
CC
4.75 V 0.0
0.5 V Min IOL = 20 mA
3.75 µA0.0
AC Electrical Characteristics
TA = +25°CT
Symbol Parameter
t
t
PLH
PHL
Propagation Delay 4.0 10.5 3.5 12.0
An, Bn to O
n
VCC = +5.0V VCC = +5.0V
CL = 50 pF CL = 50 pF
Min Typ Max Min Max
5.0 12.5 5.0 13.0
V
CC
OUT
IID = 1.9 µA
All Other Pins Grounded
V
IOD
All Other Pins Grounded
OUT
= 0°C to +70°C
A
Conditions
= V
CC
= 150 mV
= 0V
Units
ns
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