參數(shù)資料
型號(hào): W78C32CP-40
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: FUSE 2A00 250V 5.0X20 MM S CR
中文描述: 8-BIT, 40 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁(yè)數(shù): 9/14頁(yè)
文件大?。?/td> 155K
代理商: W78C32CP-40
W78C32C
Publication Release Date: July 1999
- 9 -
Revision A2
Port Access Cycle
PARAMETER
SYMBOL
T
PDS
T
PDH
T
PDA
MIN.
1 T
CP
0
1 T
CP
TYP.
-
-
-
MAX.
-
-
-
UNIT
nS
nS
nS
Port Input Setup to ALE Low
Port Input Hold from ALE Low
Port Output to ALE
Note: Ports are read during S5P2, and output data becomes available at the end of S6P2. The timing data are referenced to
ALE, since it provides a convenient reference.
TIMING WAVEFORMS
Program Fetch Cycle
S1
XTAL1
S2
S3
S4
S5
S6
S1
S2
S3
S4
S5
S6
ALE
PORT 2
A0-A7
A0-A7
Data
A0-A7
Code
T
A0-A7
Data
Code
PORT 0
PSEN
PDH,
T
PDZ
T
PDA
T
AAH
T
AAS
T
PSW
T
APL
T
ALW
Data Read Cycle
S2
S3
S5
S6
S1
S2
S3
S4
S5
S6
S1
S4
XTAL1
ALE
PSEN
DATA
A8-A15
PORT 2
PORT 0
A0-A7
RD
T
DDH,
T
DDZ
T
DDA
T
DRD
T
DAR
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