Page 285
TMP89FM42
RA001
18.6 AC Specifications
The AC specifications are as listed below.
The operating mode (fast or standard) mode should be selected suitable for frequency of fcgck. For these operating
mode, refer to the following table.
Note: For m and n, refer to"18.4.4.1 Clock source".
Figure 18-23 Definition of Timing (No. 1)
Table 18-6 AC Specifications (Circuit Output Timing)
Parameter
Symbol
Standard mode
Fast mode
Unit
MIN.
MAX.
MIN.
MAX.
SCL clock frequency
f
SCL
0
fcgck / (m+n)
0
fcgck / (m+n)
kHz
Hold time (re)start condition. This
period is followed by generation of the
first clock pulse.
t
HD;STA
m / fcgck
-
m / fcgck
-
µ
s
Low-level period of SCL clock (output)
t
LOW
n / fcgck
-
n / fcgck
-
µ
s
High-level period of SCL clock (output)
t
HIGH
m / fcgck
-
m / fcgck
-
µ
s
Low-level period of SCL clock (input)
t
LOW
5 / fcgck
-
5 / fcgck
-
µ
s
High-level period of SCL clock (input)
t
HIGH
3 / fcgck
-
3 / fcgck
-
µ
s
Restart condition setup time
t
SU;STA
Depends on
the software
-
Depends on
the software
-
µ
s
Data hold time
t
HD;DAT
0
5 / fcgck
0
5 / fcgck
µ
s
Data setup time
t
SU;DAT
250
-
100
-
ns
Rising time of SDA and SCL signals
t
r
-
1000
-
300
ns
Falling time of SDA and SCL signals
t
f
-
300
-
300
ns
Stop condition setup time
t
SU;STO
m / fcgck
-
m / fcgck
-
µ
s
Bus free time between the stop condi-
tion and the start condition
t
BUF
Depends on
the software
-
Depends on
the software
-
µ
s
Time before rising of SCL after
SBICR2<PIN> is changed from "0" to
"1"
t
SU;SCL
n / fcgck
-
n / fcgck
-
µ
s
t
LOW
t
f
t
f
t
SU;STA
t
SU;STO
t
BUF
t
HD;STA
t
r
t
SU;DAT
t
HD;STA
t
HIGH
t
HD;DAT
t
f
Summary of Contents for TLCS-870/C1 Series
Page 1: ...8 Bit Microcontroller TLCS 870 C1 Series TMP89FM42 查询TMP89FM42供应商 捷多邦 专业PCB打样工厂 24小时加急出货 ...
Page 3: ...Revision History Date Revision 2007 10 25 1 First Release 2007 11 3 2 Contents Revised ...
Page 4: ......
Page 14: ......
Page 18: ...1 3 Block Diagram TMP89FM42 1 3 Block Diagram Figure 1 2 Block Diagram ...
Page 22: ...1 4 Pin Names and Functions TMP89FM42 ...
Page 60: ...2 CPU Core 2 5 Revision History TMP89FM42 ...
Page 76: ...3 Interrupt Control Circuit 3 8 Revision History TMP89FM42 ...
Page 86: ...4 External Interrupt control circuit 4 3 Function TMP89FM42 ...
Page 102: ...7 Voltage Detection Circuit 7 5 Revision History TMP89FM42 ...
Page 126: ...8 I O Ports 8 3 I O Port Registers TMP89FM42 Note 2 i 0 to 1 ...
Page 136: ...8 I O Ports 8 5 Revision History TMP89FM42 ...
Page 142: ...9 Special Function Registers 9 3 SFR3 0x0E40 to 0x0EFF TMP89FM42 ...
Page 146: ...10 Low Power Consumption Function for Peripherals TMP89FM42 ...
Page 149: ...TMP89FM42 11 3 Revision History Rev Description RA001 Deleted SLEEP2 description ...
Page 150: ...11 Divider Output DVO 11 3 Revision History TMP89FM42 ...
Page 220: ...15 Real Time Clock RTC 15 4 Real Time Clock Operation TMP89FM42 ...
Page 250: ...16 Asynchronous Serial Interface UART 16 15 Revision History TMP89FM42 ...
Page 302: ...18 Serial Bus Interface SBI 18 7 Revision History TMP89FM42 ...
Page 338: ...21 Flash Memory 21 4 Toggle Bit D6 TMP89FM42 ...
Page 384: ...22 Serial PROM Mode 22 15 Revision History TMP89FM42 ...
Page 388: ...24 Input Output Circuit 24 1 Control Pins TMP89FM42 ...
Page 404: ...25 Electrical Characteristics 25 11 Revision History TMP89FM42 ...
Page 406: ...26 Package Dimensions TMP89FM42 ...
Page 408: ......