83C196EA Intel Corporation, 83C196EA Datasheet - Page 27

• Manufacturer Part Number: 83C196EA
• Description: CHMOS 16-BIT MICROCONTROLLER
• Manufacturer: Intel Corporation

6.3 AC Characteristics — Demultiplexed Bus Mode
Test Conditions: Capacitive load on all pins = 50 pF, Rise and Fall Times = 3 ns.
F
f
t
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
1.
2.
3.
4.
5.
6.
7.
8.
9.
Symbol
XTAL
AVDV
RLDV
AVWL
AVRL
SLDV
CHDV
RHDZ
RHRL
RXDX
XHCH
CLCL
CHCL
CLLH
RLCL
RLRH
RHLH
WLCL
QVWH
ADVANCE INFORMATION
1
16 MHz is the maximum input frequency when using an external crystal oscillator; however, 40 MHz
can be applied with an external clock source.
If wait states are used, add 2t
Assuming back-to-back bus cycles.
When forcing wait states using the BUSCON register, add 2t
Exceeding the maximum specification causes additional wait states.
8-bit bus only.
The first falling edge of READY is not synchronized to a CLKOUT edge; therefore, one programmed
wait state is required.
Device is static by design but has been tested only down to 20 MHz.
Assumes CLKOUT is operating in divide-by-two mode (f/2).
Frequency on XTAL1, PLL in 1x mode
Frequency on XTAL1, PLL in 2x mode
Operating frequency, f = F
Operating frequency, f = 2F
Period, t = 1/f
Address Valid to Input Data Valid
RD# Low to Input Data Valid
Address Valid to WR# Low
Address Valid to RD# Low
Chip Select Low to Data Valid
CLKOUT Rising Edge to Input Data Valid
RD# High to Input Data Float
Read High to Next Read Low
Data Hold after RD# Inactive
XTAL1 High to CLKOUT High or Low
CLKOUT Cycle Time
CLKOUT High Period
CLKOUT Falling ALE Rising
RD# Low to CLKOUT Low
RD# Low to RD# High
RD# Rising to ALE Rising
WR# Low to CLKOUT Falling
Data Stable to WR# Rising Edge
Table 9. AC Characteristics, Demultiplexed Bus Mode
83C196EA CHMOS 16-BIT MICROCONTROLLER — AUTOMOTIVE
Parameter
n , where n = number of wait states.
XTAL
XTAL
1
; PLL in 1x mode
1
; PLL in 2x mode
n.
3t – 10
3t – 18
t – 8
t – 5
t – 5
t – 4
– 12
Min
– 5
– 5
16
16
25
10
2t
8
0
t
4t – 23
3t – 25
4t – 27
2t – 25
t + 12
Max
62.5
t + 5
t - 5
40
20
40
35
5
5
5
MHz (1,8)
MHz (8)
ns (2)
ns (9)
ns (9)
ns (9)
Units
ns (2)
ns (2)
ns (9)
ns (9)
ns (9)
ns (9)
ns (2)
ns ( 3 )
ns (3)
Mhz
ns
ns
ns
ns
ns
ns
23