80C154 Datasheet, PDF (20/24 Pages) TEMIC Semiconductors – CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller

80C154/83C154
External Data Memory Characteristics
SYMBOL
TRLRH
TWLWH
TLLAX
TRLDV
TRHDX
TRHDZ
TLLDV
TAVDV
TLLWL
TAVWL
TQVWX
TQVWH
TWHQX
TRLAZ
TWHLH
PARAMETER
RD pulse Width
WR pulse Width
Address Hold After ALE
RD to Valid in
Data hold after RD
Data float after RD
ALE to Valid Data In
Address to Valid Data IN
ALE to WR or RD
Address to WR or RD
Data valid to WR transition
Data Setup to WR transition
Data Hold after WR
RD low to Address Float
RD or WR high to ALE high
16 MHz
20 MHz
25 MHz
30 MHz
36 MHz
MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX
340
270
210
180
120
340
270
210
180
120
85
85
70
55
35
240
210
175
135
110
0
0
0
0
0
90
90
80
70
50
435
370
350
235
170
480
400
300
260
190
150 250 135 170 120 130 90 115 70 100
180
180
140
115
75
35
35
30
20
15
380
325
250
215
170
40
35
30
20
15
0
0
0
0
0
35 90 35 60 25 45 20 40 20 40
External Data Memory Write Cycle
TAVWL
TQVWX
External Data Memory Read Cycle
20
MATRA MHS
Rev.F (14 Jan. 97)