參數(shù)資料
型號: 25C256
廠商: Microchip Technology Inc.
英文描述: 256K 5.0V SPI Bus Serial EEPROM(4.5~5.5V,256K位,SPI總線串行EEPROM)
中文描述: 256K 5.0V SPI總線串行EEPROM(4.5?5.5V的,256K位和SPI總線串行EEPROM的)
文件頁數(shù): 136/170頁
文件大?。?/td> 4191K
代理商: 25C256
PIC16F62X
DS40300C-page 134
Preliminary
2003 Microchip Technology Inc.
17.3
Timing Parameter Symbology
The timing parameter symbols have been created with one of the following formats:
FIGURE 17-5:
LOAD CONDITIONS
1. TppS2ppS
2. TppS
T
F
Frequency
T
Time
Lowercase subscripts (pp) and their meanings:
pp
ck
CLKOUT
osc
OSC1
io
I/O port
t0
T0CKI
mc
MCLR
Uppercase letters and their meanings:
S
F
Fall
P
Period
H
High
R
Rise
I
Invalid (Hi-impedance)
V
Valid
L
Low
Z
Hi-Impedance
V
DD
/2
CL
RL
PIN
PIN
V
SS
V
SS
CL
R
L
= 464
C
L
= 50 pF for all pins except OSC2
15 pF for OSC2 output
Load Condition 1
Load Condition 2
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