(VCC = 5V ±10%, T
參數(shù)資料
型號: DS2251T-128-16
廠商: Maxim Integrated Products
文件頁數(shù): 9/22頁
文件大小: 0K
描述: IC MICROCNTRLR 128K 16MHZ 72SIMM
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 1
系列: DS225x
核心處理器: 8051
芯體尺寸: 8-位
速度: 16MHz
連通性: SIO,UART/USART
外圍設(shè)備: 電源故障復(fù)位,WDT
輸入/輸出數(shù): 32
程序存儲(chǔ)器類型: SRAM
RAM 容量: 128K x 8
電壓 - 電源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振蕩器型: 外部
工作溫度: 0°C ~ 70°C
封裝/外殼: 72-SIMM
包裝: 托盤
DS2251T
17 of 22
AC CHARACTERISTICS—PARALLEL PROGRAM LOAD TIMING
(VCC = 5V ±10%, TA = 0C to +70C.)
#
PARAMETER
SYMBOL
MIN
MAX
UNITS
41 Pulse Width of PE 3-4
tCEPW
4tCLK - 35
ns
45 Byte-wide Address Hold after
PE
3-4 High
During MOVX
tCEHDA
4tCLK - 30
ns
46 Delay from Byte-wide Address Valid
PE
3-4
Low During MOVX
tCELDA
4tCLK - 35
ns
47 Byte-wide Data Setup to
PE
3-4 High During
MOVX (read)
tDACEH
1tCLK + 40
ns
48 Byte-wide Data Hold after
PE
3-4 High
During MOVX (read)
tCEHDV
10
ns
49 Byte-wide Address Valid to R/
W
Active
During MOVX (write)
tAVRWL
3tCLK - 35
ns
50 Delay from R/
W
Low to Valid Data Out
During MOVX (write)
tRWLDV
20
ns
51 Valid Data Out Hold Time from PE 3-4 High
tCEHDV
1tCLK - 15
ns
52 Valid Data Out Hold Time from R/ W High
tRWHDV
0
ns
53 Write Pulse Width (R/ W Low Time)
tRWLPW
6tCLK - 20
ns
BYTE-WIDE BUS TIMING
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