83C196LC Datasheet, PDF (15/22 Pages) Intel Corporation – CHMOS 16-BIT MICROCONTROLLER

AUTOMOTIVE — 83C196LC, 83C196LD
Table 7. AC Characteristics (Continued)
Symbol
Parameter
Min
Max
Units
The external memory system must meet these specifications
T_AVDV
Address Valid to Input Data Valid
3 T_XTAL1 – 55
ns
T_RLDV
RD# Low to Input Data Valid
T_XTAL1 – 22
ns
T_CLDV
CLKOUT Low to Input Data Valid
T_XTAL1 – 50
ns
T_RHDZ
RD# High to Input Data Float
T_XTAL1
ns
T_RXDX
Data Hold after RD# Inactive
0
ns
NOTES:
1. Testing is performed at 4 MHz, however, the device is static by design and will typically operate below
1 Hz.
2. Typical specifications, not guaranteed.
3. Assuming back-to-back bus cycles.
4. 8-bit bus only.
5. T_RLAZ (max) = 5 ns by design.
Character
A
C
D
L
Q
R
W
Table 8. AC Timing Symbol Definitions
Signal(s)
AD15:0
CLKOUT
AD15:0, AD7:0
ALE
AD15:0, AD7:0
RD#
WR#, WRL#
Character
H
L
V
X
Z
High
Low
Valid
No Longer Valid
Floating (low impedance)
Condition
ADVANCE INFORMATION
15