參數(shù)資料
型號: MC68HC705T16B
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP56
封裝: PLASTIC, SDIP-56
文件頁數(shù): 25/128頁
文件大小: 734K
代理商: MC68HC705T16B
MOTOROLA
14-4
MC68HC05T16
ELECTRICAL SPECIFICATIONS
14
14.6
M-Bus Interface Timing
Table 14-4 M-Bus Interface Input Signal Timing
(VDD=5.0Vdc ±10%, VSS=0Vdc, temperature range=0 to 70°C)
PARAMETERS
SYMBOL
MINIMUM
MAXIMUM
UNIT
START condition hold time
tHD.STA
2–
tCYC
START condition setup time
(for repeated START condition only)
tSU.STA
2–
tCYC
SCL clock low period
tLOW
4.7
tCYC
SCL clock high period
tHIGH
4.0
tCYC
SDA data setup time
tSU.DAT
250
s
SDA data hold time
tHD.DAT
0–
s
STOP condition setup time
tSU.STO
2–
tCYC
Table 14-5 M-Bus Interface Output Signal Timing
(VDD=5.0Vdc ±10%, VSS=0Vdc, temperature range=0 to 70°C)
CHARACTERISTICS
SYMBOL
MINIMUM
MAXIMUM
UNIT
START condition hold time
tHD.STA
8–
tCYC
START condition setup time
(for repeated START condition only)
tSU.STA
10
tCYC
SCL clock low period
tLOW
11
tCYC
SCL clock high period
tHIGH
11
tCYC
SDA/SCL rise time (see note 1)
tR
–1
s
SDA/SCL fall time (see note 1)
tF
300
ns
SDA data setup time
tSU.DAT
tLOW-2tCYC
s
SDA data hold time
tHD.DAT
170
ns
STOP condition setup time
tSU.STO
10
tCYC
Note:
1. With 200pF loading on the SDA/SCL pins
Figure 14-1 M-Bus Timing Diagram
SDA
SCL
tHIGH
tHD.STA
tLOW
tSU.DAT
tHD.DAT
tSU.STA
tSU.STO
tR
tF
TPG
118
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