参数资料
型号: SST89E554A-40-C-NJ
厂商: SILICON STORAGE TECHNOLOGY INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封装: PLASTIC, MS-018AC, LCC-44
文件页数: 74/87页
文件大小: 996K
代理商: SST89E554A-40-C-NJ
76
Preliminary Specifications
FlashFlex51 MCU
SST89E554A / SST89V554A
2003 Silicon Storage Technology, Inc.
S71228-00-000
6/03
FIGURE
14-5: EXTERNAL DATA MEMORY WRITE CYCLE
FIGURE
14-6: EXTERNAL CLOCK DRIVE WAVEFORM
TABLE
14-9: EXTERNAL CLOCK DRIVE
Symbol
Parameter
Oscillator
Units
12MHz
40MHz
Variable
MinMax
Min
Max
1/TCLCL
Oscillator Frequency
0
40
MHz
TCLCL
83
25
ns
TCHCX
High Time
8.75
0.35TCLCL
0.65TCLCL
ns
TCLCX
Low Time
8.75
0.35TCLCL
0.65TCLCL
ns
TCLCH
Rise Time
20
10
ns
TCHCL
Fall Time
20
10
ns
T14-9.0 1228
1228 F36.1
PORT 2
PORT 0
WR#
PSEN#
ALE
TLHLL
P2[7:0] or A8-A15 FROM DPH
A0-A7 FROM RI or DPL
DATA OUT
INSTR IN
TAVLL
TAVWL
TLLWL
TLLAX
TWLWH
TQVWH
TWHQX
TQVWX
TWHLH
A8-A15 FROM PCH
A0-A7 FROM PCL
0.2 VDD - 0.1
0.45 V
TCHCL
TCLCL
TCLCH
TCLCX
TCHCX
0.7VDD
VDD - 0.5
1228 F37.0
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