参数资料
型号: TSC87C52-25MKMQ
厂商: ATMEL CORP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, UVPROM, 25 MHz, MICROCONTROLLER, CQCC44
封装: WINDOWED, CERAMIC, QPJ-44
文件页数: 10/23页
文件大小: 182K
代理商: TSC87C52-25MKMQ
TSC87C52
18
Rev. E – July 03, 2000
External Data Memory Characteristics
0 to 12MHz
25 MHz
Symbol
Parameter
Min
Max
Min
Max
Units
TRLRH
RD Pulse Width
6TCLCL–100
210
ns
TWLWH
WR Pulse Width
6TCLCL–100
210
ns
TRLDV
RD to Valid Data In
5TCLCL–165
170
ns
TRHDX
Data Hold After RD
0
ns
TRHDZ
Data Float After RD
2TCLCL–60
70
ns
TLLDV
ALE to Valid Data In
8TCLCL–150
290
ns
TAVDV
Address to Valid Data In
9TCLCL–165
320
ns
TLLWL
ALE to WR or RD
3TCLCL–50
3TCLCL+50
130
170
ns
TAVWL
Address to WR or RD
4TCLCL–130
140
ns
TQVWX
Data Valid to WR Transition
TCLCL–50
15
ns
TQVWH
Data set–up to WR High
7TCLCL–150
250
ns
TWHQX
Data Hold After WR
TCLCL–50
30
ns
TRLAZ
RD Low to Address Float
0
ns
TWHLH
RD or WR High to ALE
high
TCLCL–40
TCLCL+40
25
50
ns
External Data Memory Write Cycle
TQVWH
TLLAX
ALE
PSEN
WR
PORT 0
PORT 2
A0–A7
DATA OUT
ADDRESS
OR SFR–P2
TAVWL
TLLWL
TQVWX
ADDRESS A8–A15 OR SFR P2
TWHQX
TWHLH
TWLWH
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