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参数资料
| 型号： | R8A66151SP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 24 I/O, PIA-GENERAL PURPOSE, PDSO32 |
| 封装： | SOP-32 |
| 文件页数： | 4/8页 |
| 文件大小： | 554K |
| 代理商： | R8A66151SP |
R8A66151SP
REJ03F0258-0100 Rev.1.00 Jan.08.2008
Page 2 of 7
BLOCK DIAGRAM
FUNCTION
The R8A66151 is produced by using the silicon gate CMOS technology and has low power dissipation and
high noise margin.
Built in two shift registers for serial in-parallel out (Shift register 2) and parallel in-serial out (Shift register 1)
are constructed independently, R8A66151 is able to read serial input data into a shift register while output
the serial data converting from the parallel data input.
Serial output operation of 24-bit parallel latched data and serial input operation from MCU are started when
/CS is changed from "H" to "L".
24-bits parallel data are latched by the negative edge of /CS and are output from the DO terminal
synchronously to the negative edge of CLK, and also the DI terminal read serial input data from MCU and
are written into the internal shift register 2.
The 25th and following shift clock pulse are ignored and serial input data is masked, and DO terminal
becomes high-impedance ("High-Z").
When /CS is changed from "L" to "H", 24-bits serial data which is read from the DI terminal are output to the
D1~D24 terminals as parallel data.
As the output circuit type of D1~D24 terminals is N-ch open drain output, write data "H" for pins which should
be set to input mode.
C
o
n
tro
lc
irc
u
it
CLK
S
CS
D24 D23 D22
DO
D24 D23 D22
Q24 Q23 Q22
DI
D24
D23
D22
D3
D2
D1
DO
Vcc
GND GND
D3 D2 D1
Q3 Q2 Q1
D3 D2 D1
Q24 Q23 Q22
Q3 Q2 Q1
Vcc
DO
D1 ~ D24
Vcc
CLK, S, CS, DI
Vcc
3
6
4
2
716
10
9
8
30
31
32
1
5
S
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相关代理商/技术参数 |
参数描述 |
|---|---|
| R8A66151SP#T1 | 制造商:Renesas 功能描述:0 |
| R8A66152SP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:12-BIT I/O EXPANDER WITH LED DRIVE FUNCTION |
| R8A66153FP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:PROGRAMMABLE BUFFERED I/O EXPANDER |
| R8A66153FP#R1 | 制造商:Renesas Electronics Corporation 功能描述:PROGRAMMABLE BUFFERED I/O EXPANDER 制造商:Renesas 功能描述:0 |
| R8A66153FP#RF0Z | 制造商:Renesas Electronics Corporation 功能描述: |
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