参数资料
型号: M37221M8H-XXXSP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8.1 MHz, MICROCONTROLLER, PDIP42
封装: 0.600 INCH, 1.78 MM PITCH, PLASTIC, SDIP-42
文件页数: 93/112页
文件大小: 1179K
代理商: M37221M8H-XXXSP
M37221M4H/M6H/M8H/MAH–XXXSP/FP M37221EASP/FP
Rev.1.00
Oct 01, 2002
page 81 of 110
REJ03B0134-0100Z
Max.
6
2
3
4
Min.
1
Typ.
2.5
13. A-D COMPARISON CHARACTERISTICS
(VCC = 5 V ± 10 %, VSS = 0 V, f(XIN) = 8 MHz, Ta = 10 °C to 70 °C, unless otherwise noted)
Resolution
Absolute accuracy
Max.
6
±2
bits
LSB
Min.
0
Limits
Unit
Test conditions
Parameter
Symbol
Typ.
±1
15. MULTI-MASTER I2C-BUS BUS LINE CHARACTERISTICS
Bus free time
Hold time for START condition
LOW period of SCL clock
Rising time of both SCL and SDA signals
Data hold time
HIGH period of SCL clock
Falling time of both SCL and SDA signals
Data set-up time
Set-up time for repeated START condition
Set-up time for STOP condition
tBUF
tHD; STA
tLOW
tR
tHD; DAT
tHIGH
tF
tSU; DAT
tSU; STA
tSU; STO
Max.
1000
300
Min.
1.3
0.6
1.3
20+0.1Cb
0
0.6
20+0.1Cb
100
0.6
Max.
300
0.9
300
s
ns
s
ns
s
Unit
Standard clock mode High-speed clock mode
Parameter
Symbol
Note: Cb = total capacitance of 1 bus line
Fig.15.1 Definition Diagram of Timing on Multi-master I2C-BUS
Min.
4.7
4.0
4.7
0
4.0
250
4.7
4.0
SDA
SCL
P
tBUF
S
tHD;STA
tLOW
tR
tHD;DAT
tHIGH
tF
tSU;DAT
tSU;STA
Sr
P
tSU;STO
tHD;STA
S
Sr
P
: Start condition
: Restart condition
: Stop condition
14. D-A CONVERSION CHARACTERISTICS
(VCC = 5 V ± 10 %, VSS = 0 V, f(XIN) = 8 MHz, Ta = 10 °C to 70 °C, unless otherwise noted)
Resolution
Absolute accuracy
Setting time
Output resistor
bits
LSB
s
k
Limits
Unit
Test conditions
Parameter
Symbol
tsu
Ro
Note: Only M37221EASP/FP have a built-in D-A converter.
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