TSC87C51 TEMIC Semiconductors, TSC87C51 Datasheet - Page 17

• Manufacturer Part Number: TSC87C51
• Description: CMOS 0 to 25 MHz Programmable 8-bit Microcontroller
• Manufacturer: TEMIC Semiconductors

Rev. E
External Data Memory Characteristics
External Data Memory Write Cycle
TWLWH
TQVWX
TQVWH
TWHQX
Symbol
TWHLH
TRHDX
TAVWL
TRLRH
TRLDV
TRHDZ
TLLDV
TAVDV
TLLWL
TRLAZ
PORT 0
PORT 2
–
PSEN
ALE
WR
July 03, 2000
OR SFR–P2
ADDRESS
RD Pulse Width
WR Pulse Width
RD to Valid Data 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 set–up to WR High
Data Hold After WR
RD Low to Address Float
RD or WR High to ALE
high
Parameter
A0–A7
TLLAX
TAVWL
TLLWL
6TCLCL–100
6TCLCL–100
4TCLCL–130
7TCLCL–150
3TCLCL–50
TCLCL–50
TCLCL–50
TCLCL–40
Min
0
ADDRESS A8–A15 OR SFR P2
0 to 12 MHz
TQVWX
5TCLCL–165
8TCLCL–150
9TCLCL–165
2TCLCL–60
3TCLCL+50
TQVWH
TCLCL+40
TWLWH
Max
DATA OUT
0
TWHLH
TSC87C51
Min Max
210
210
130
140
250
15
30
25
25 MHz
0
170
290
320
170
70
50
0
TWHQX
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
17