74F862 Datasheet, PDF (4/12 Pages) NXP Semiconductors – Bus transceivers 3-State

Philips Semiconductors
Bus transceivers (3-State)
Product specification
74F862, 74F863
LOGIC DIAGRAM
OEAB
74F862
10
A_n
10
B_n
LOGIC DIAGRAM
OEAB₀
OEAB₁
74F863
9
A_n
OEBA
SF00531
OEBA₀
OEBA₁
INPUT AND OUTPUT LOADING AND FAN-OUT TABLE
PINS
DESCRIPTION
74F(U.L.)
HIGH/LOW
74F862
A₀ – A₉
B₀ – B₉
OEBA
OEAB
Data transmit inputs
Data receive inputs
Transmit output enable input
Receive output enable input
3.5/0.117
3.5/0.117
1.0/0.033
1.0/0.033
A₀ – A₉
Data transmit outputs
1200/106.7
B₀ – B₉
Data receive outputs
1200/106.7
A₀ – A₉
Data transmit inputs
3.5/0.117
B₀ – B₉
Data receive inputs
3.5/0.117
74F863
OEBA_n
OEAB_n
Transmit output enable input
Receive output enable input
1.0/0.033
1.0/0.033
A₀ – A₉
Data transmit outputs
1200/106.7
B₀ – B₉
Data receive outputs
1200/106.7
NOTE: One (1.0) FAST Unit Load is defined as: 20µA in the High state and 0.6mA in the Low state.
FUNCTION TABLE FOR 74F862
OEAB
L
H
H
INPUTS
OEBA
H
L
H
H = High voltage level
L = Low voltage level
Z = High impedance “off” state
OPERATING MODES
74F862
A data to B bus
B bus to A data
Z
FUNCTION TABLE FOR 74F863
INPUTS
OEAB₀
L
L0
H
X
H
OEAB₁
L
L
X
H
H
OEBA₀
H
X
L
L
H
OEBA₁
X
H
L
L
H
H = High voltage level
L = Low voltage level
Z = High impedance “off” state
OPERATING MODES
74F863
A data to B bus
B bus to A data
Z
9
B_n
SF00532
LOAD VALUE
HIGH/LOW
70µA/70µA
70µA/70µA
20µA/20µA
20µA/20µA
24mA/64mA
24mA/64mA
70µA/70µA
70µA/70µA
20µA/20µA
20µA/20µA
24mA/64mA
24mA/64mA
2000 Mar 24
4