Fairchild MM74C901, MM74C902 service manual
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MM74C901 • MM74C902
Hex Inverting TTL Buffer •
Hex Non-Inverting TTL Buffer
MM74C901 • MM74C902 Hex Inverting TTL Buffer • Hex Non-Inverting TTL Buffer
October 1987
Revised January 1999
General Description
The MM74C901 and MM74C902 hex buffers employ complementary MOS to achieve wide supply operating range,
low power consumption, and high noise immunity. These
buffers provide direct interface from P MOS into CMOS or
TTL and direct interface from CMOS to TTL or CMOS
operating at a reduced V
CC
supply.
Features
■ Wide supply voltage range: 3.0V to 15V
■ Guaranteed noise margin: 1.0V
■ High noise immunity: 0.45 V
■ TTL compatibility: Fan out of 2 driving standard TTL
CC
(typ.)
Ordering Code:
Order Number Package Number Package Description
MM74C901M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow
MM74C901N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-011, 0.300” Wide
MM74C902M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150” Narrow
MM74C902N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-011, 0.300” Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” t o t he ordering code.
Connection Diagrams
Pin Assignments for DIP and SOIC
MM74C901
MM74C902
Top View
Top View
Logic Diagrams
CMOS to TTL Inverting Buffer
MM74C901
© 1999 Fairchild Semiconductor Corporation DS005909.prf www.fairchildsemi.com
MM74C902
CMOS to TTL Buffer
Absolute Maximum Ratings(Note 1)
Voltage at Any Pin −0.3V to VCC + 0.3V
Voltage at Any Input Pin
MM74C901 −0.3V to +15V
Operating V
Absolute Maximum V
Lead Temperature (T
(Soldering, 10 seconds) 260°C
Range 3.0V to 15V
CC
CC
)
L
18V
MM74C902 −0.3V to +15V
Storage Temperature Range (T
Power Dissipation (P
)
D
Dual-In-Line 700 mW
Small Outline 500 mW
MM74C901 • MM74C902
Operating Temperature Range (T
)
S
)
A
−65°C to +150°C
Note 1: “Absolute Maxi mum Ratings” are those valu es beyond which the
safety of the device cannot be guaranteed. E x ce pt for “O perating Temperature Range” they are not mean t to imply that the devices sho uld be operated at these limits. The table of “Electrical Characteristics” provides
conditions for actual device op eration.
MM74C901, MM74C902, −40°C to +85°C
DC Electrical Characteristics
Min/Max limits apply across temperature range unless otherwise noted
Symbol Parameter Conditions Min Typ Max Units
CMOS TO CMOS
V
IN(1)
V
IN(0)
V
OUT(1)
V
OUT(0)
I
IN(1)
I
IN(0)
I
CC
TTL TO CMOS
V
IN(1)
V
IN(0)
CMOS TO TTL
V
IN(1)
V
IN(0)
V
OUT(1)
V
OUT(0)
OUTPUT DRIVE (See Family Characteristics Data Sheet) (Short Circuit Current)
I
SOURCE
I
SOURCE
I
SINK
I
SINK
Logical “1” Input Voltage V
Logical “0” Input Voltage V
Logical “1” Output Voltage V
Logical “0” Output Voltage V
Logical “1” Input Current V
Logical “0” Input Current V
Supply Current V
Logical “1” Input Voltage V
Logical “0” Input Voltage V
Logical “1” Input Voltage
MM74C901 V
MM74C902 V
Logical “0” Input Voltage
MM74C901 V
MM74C902 V
Logical “1” Output Voltage V
Logical “0” Output Voltage
MM74C901 V
MM74C902 V
(MM74C901)
Output Source Current V
(P-Channel) T A = 25°C, VIN = 0V
Output Source Current V
(P-Channel) T A = 25°C, VIN = 0V
Output Sink Current V
(N-Channel) T A = 25°C, VIN = V
Output Sink Current V
(N-Channel) T A = 25°C, VIN = V
(MM74C902)
= 5.0V 3.5 V
CC
V
= 10V 8.0 V
CC
= 5.0V 1.5 V
CC
V
= 10V 2.0 V
CC
= 5.0V, IO = −10 µA4.5 V
CC
V
= 10V, IO = −10 µA9.0 V
CC
= 5.0V 0.5 V
CC
V
= 10V 1.0 V
CC
= 15V, VIN = 15V 0.005 1.0 µA
CC
= 15V, VIN = 0V −1.0 −0.005 µA
CC
= 15V 0.05 15 µA
CC
= 4.75V V
CC
= 4.75V 0.8 V
CC
= 4.75V 4.25 V
CC
= 4.75V V
CC
= 4.75V 1.0 V
CC
= 4.75V 1.5 V
CC
= 4.75V, IO = −800 µA2.4 V
CC
= 4.75V, IO = 2.6 mA 0.4 V
CC
= 4.75V, IO = 3.2 mA 0.4 V
CC
= 5.0V, V
CC
= 10V, V
CC
= 5.0V, V
CC
= 5.0V, V
CC
= 0V −5.0 mA
OUT
= 0V −20 mA
OUT
= V
OUT
CC
CC
= 0.4V 3.8 mA
OUT
CC
− 1.5 V
CC
− 1.5 V
CC
9.0 mA
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