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7540 Datasheet(PDF) 241 Page - Renesas Technology Corp

Part # 7540
Description  8-BIT CISC SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 740 SERIES
PDF  366 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7540 Datasheet(HTML) 241 Page - Renesas Technology Corp

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3-19
REJ09B0018-0200Z
Rev.2.00
Jun 21, 2004
7540 Group
APPENDIX
3.1 Electrical characteristics
(5) Timing Requirements (Extended operating temperature version)
Table 3.1.19 Timing requirements (1)
(VCC = 4.0 to 5.5 V, VSS = 0 V, Ta = –40 to 85 °C, unless otherwise noted)
Min.
Typ.
Max.
Symbol
Parameter
Limits
Unit
Reset input “L” pulse width
External clock input cycle time
External clock input “H” pulse width
External clock input “L” pulse width
CNTR0 input cycle time
CNTR0, INT0, INT1, input “H” pulse width
CNTR0, INT0, INT1, input “L” pulse width
CNTR1 input cycle time
CNTR1 input “H” pulse width
CNTR1 input “L” pulse width
Serial I/O1 clock input cycle time (Note)
Serial I/O1 clock input “H” pulse width (Note)
Serial I/O1 clock input “L” pulse width (Note)
Serial I/O1 input set up time
Serial I/O1 input hold time
Serial I/O2 clock input cycle time
Serial I/O2 clock input “H” pulse width
Serial I/O2 clock input “L” pulse width
Serial I/O2 input set up time
Serial I/O2 input hold time
tW(RESET)
tC(XIN)
tWH(XIN)
tWL(XIN)
tC(CNTR0)
tWH(CNTR0)
tWL(CNTR0)
tC(CNTR1)
tWH(CNTR1)
tWL(CNTR1)
tC(SCLK1)
tWH(SCLK1)
tWL(SCLK1)
tsu(RxD1–SCLK1)
th(SCLK1–RxD1)
tC(SCLK2)
tWH(SCLK2)
tWL(SCLK2)
tsu(SDATA2–SCLK2)
th(SCLK2–SDATA2)
2
125
50
50
200
80
80
2000
800
800
800
370
370
220
100
1000
400
400
200
200
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Note: In this time, bit 6 of the serial I/O1 control register (address 001A16) is set to “1” (clock synchronous serial I/O1 is selected).
When bit 6 of the serial I/O1 control register is “0” (clock asynchronous serial I/O1 is selected), the rating values are divided by 4.
Table 3.1.20 Timing requirements (2)
(VCC = 2.4 to 5.5 V, VSS = 0 V, Ta = –40 to 85 °C, unless otherwise noted)
Min.
Typ.
Max.
Symbol
Parameter
Limits
Unit
Reset input “L” pulse width
External clock input cycle time
External clock input “H” pulse width
External clock input “L” pulse width
CNTR0 input cycle time
CNTR0, INT0, INT1, input “H” pulse width
CNTR0, INT0, INT1, input “L” pulse width
CNTR1 input cycle time
CNTR1 input “H” pulse width
CNTR1 input “L” pulse width
Serial I/O1 clock input cycle time (Note)
Serial I/O1 clock input “H” pulse width (Note)
Serial I/O1 clock input “L” pulse width (Note)
Serial I/O1 input set up time
Serial I/O1 input hold time
Serial I/O2 clock input cycle time
Serial I/O2 clock input “H” pulse width
Serial I/O2 clock input “L” pulse width
Serial I/O2 input set up time
Serial I/O2 input hold time
tW(RESET)
tC(XIN)
tWH(XIN)
tWL(XIN)
tC(CNTR0)
tWH(CNTR0)
tWL(CNTR0)
tC(CNTR1)
tWH(CNTR1)
tWL(CNTR1)
tC(SCLK1)
tWH(SCLK1)
tWL(SCLK1)
tsu(RxD1–SCLK1)
th(SCLK1–RxD1)
tC(SCLK2)
tWH(SCLK2)
tWL(SCLK2)
tsu(SDATA2–SCLK2)
th(SCLK2–SDATA2)
2
250
100
100
500
230
230
4000
1600
1600
2000
950
950
400
200
2000
950
950
400
400
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Note: In this time, bit 6 of the serial I/O1 control register (address 001A16) is set to “1” (clock synchronous serial I/O1 is selected).
When bit 6 of the serial I/O1 control register is “0” (clock asynchronous serial I/O1 is selected), the rating values are divided by 4.



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