74F38 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2014. All rights reserved.
Product data sheet Rev. 3 — 10 January 2014 3 of 12
NXP Semiconductors
74F38
Quad 2-input NAND buffer (open collector)
5.2 Pin description
[1] One FAST Unit Load (UL) is defined as 20 A in HIGH state, 0.6 mA in LOW state.
[2] OC = open collector.
6. Functional description
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7. Limiting values
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150 C.
Table 2. Pin description
Symbol Pin Description Unit load
HIGH/LOW
Load value
[1][2]
HIGH/LOW
1A, 2A, 3A, 4A 1, 4, 9, 12 data input 1.0/2.0 20 A/1.2 mA
1B, 2B, 3B, 4B 2, 5, 10, 13 data input 1.0/2.0 20 A/1.2 mA
1Y, 2Y, 3Y, 4Y 3, 6, 8, 11 data output OC/106.7 OC/64 mA
GND 7 ground (0 V) - -
V
CC
14 supply voltage - -
Table 3. Function table
[1]
Input Output
nA nB nY
LLH
LHH
HLH
HHL
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134).
Symbol Parameter Conditions Min Max Unit
V
CC
supply voltage 0.5 +7.0 V
V
I
input voltage
[1]
0.5 +7.0 V
V
O
output voltage output in HIGH-state
[1]
0.5 V
CC
V
I
IK
input clamping current V
I
< 0 V 30 +5 mA
I
O
output current output in LOW-state - 128 mA
T
amb
ambient temperature in free-air
[2]
commercial 0 70 C
industrial 40 +85 C
T
stg
storage temperature 65 +150 C
