AM7968 AMD [Advanced Micro Devices], AM7968 Datasheet - Page 40

• Manufacturer Part Number: AM7968
• Description: TAXIchip Integrated Circuits(Transparent Asynchronous Xmitter-Receiver Interface)
• Manufacturer: AMD [Advanced Micro Devices]

SWITCHING CHARACTERISTICS over operating range unless otherwise specified
(Note 20) (for CPL Products Group A, Subgroups 9, 10, and 11 are tested unless other-
wise noted)
Am7968-125 Military TAXIchip Transmitter (Notes 10, 13, 22)
36
Bus Interface Signals: DI0–DI7, DI8/CI3, DI9/CI2, CI0–CI1, STRB, ACK, CLK
Miscellaneous Signals: X1 (Note 15)
No.
14
10
11
12
13
15
29
30
32
33
1
2
3
4
5
6
9
AMD
Parameter
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
P
PW
PW
PW
PW
BB
S
H
H
H
PD
PD
PD
PW
PW
PD
PD
Parameter Description
CLK Period
CLK Pulse Width HIGH
CLK Pulse Width LOW
STRB Pulse Width HIGH (Note 7)
STRB Pulse Width LOW
Internal Byte Boundary to CLK
(Note 11)
Data–STRB Setup Time
Data–STRB Hold Time
ACK to STRB Hold (Note 8)
ACK to STRB Hold
STRB to ACK (Note 18)
STRB to ACK
CLK to ACK (Note 18)
X1 Pulse Width HIGH (Note 12)
X1 Pulse Width LOW (Note 12)
X1 to CLK
X1 to CLK
Am7968/Am7969-125 Military
Test Conditions
TTL Output Load
TTL Output Load
TTL Output Load
TTL Output Load
TTL Output Load
TTL Output Load on CLK
TTL Output Load on CLK
TTL Load
TTL Load
–9t
8n +3
Min
8 n
25
25
20
20
10
15
35
35
1
0
0
3t
n + 43
25 n
1
Max
25
45
25
32
32
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns