74F756 Datasheet, PDF (2/12 Pages) NXP Semiconductors – Octal inverter buffer open-collector

Philips Semiconductors
Buffers
Product specification
74F756/74F757/74F760
74F756 Octal Inverter Buffer (Open Collector)
74F757 Octal Buffer (Open Collector)
74F760 Octal Buffer (Open Collector)
FEATURES
• Octal bus interface
• Open collector versions of 74F240, 74F241 and 74F244
DESCRIPTION
The 74F756, 74F757 and 74F760 are octal buffers that are ideal for
driving bus lines of buffer memory address registers. The 74F756 is
the open collector version of 74F240, 74F757 is the open collector
version of 74F241 and 74760 is the open collector version of
74F244. These devices feature two Output Enables. OEa and OEb
(or OEb for the 74F757), each controlling four of the outputs.
TYPE
74F756
74F757
74F760
TYPICAL
PROPAGATION DELAY
9.0ns
9.0ns
9.0ns
TYPICAL SUPPLY
CURRENT (TOTAL)
40mA
45mA
45mA
ORDERING INFORMATION
DESCRIPTION
20–pin plastic DIP
20–pin plastic SOL
ORDER CODE
COMMERCIAL RANGE
V_CC = 5V ±10%, T_amb = 0°C to +70°C
N74F756N, N74F757AN, N74F760N
N74F756D, N74F757AD, N74F760D
PKG DWG #
SOT146-1
SOT163-1
INPUT AND OUTPUT LOADING AND FAN OUT TABLE
PINS
DESCRIPTION
Ian, Ibn
Data inputs
OEa, OEb
Output enable input (active Low)
OEb
Output enable input (active High 74F757)
Yan, Ybn
Data outputs (74F757, 74F760)
Yan, Ybn
Data outputs (74F756)
Notes:
One (1.0) FAST unit load is defined as: 20µA in the high state and 0.6mA in the Low state.
OC=Open Collector
74F (U.L.)
HIGH/LOW
1.0/1.67
1.0/1.67
1.0/1.67
OC/106.7
OC/106.7
LOAD VALUE
HIGH/LOW
20µA/1.0mA
20µA/0.2mA
20µA/1.0mA
OC/64mA
OC/64mA
1989 Nov 27
2
853–0270 98220