参数资料
型号: RX-4591CF
元件分类: 时钟/数据恢复及定时提取
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO10
封装: SON-10
文件页数: 15/19页
文件大小: 256K
代理商: RX-4591CF
RX - 4591 CF
Page - 2
MQ - 402 - 01
3. Terminal description
3.1. Terminal connections
RX - 4591 CF
1. VDD
10. CE
2. FOE
9. CLK
3. / IRQ
8. DO
4. T1
7. D I
5. FOUT
# 1
# 5
# 10
# 6
6. GND
SON - 10pin
3.2. Pin functions
Signal
name
I / O
Signal description
CE
Input
This is a chip enabled input pin with the builit-in pull- down resistor.
When the CE pin is "H" level, access to this RTC is possible.
Also, when the chip is not selected, the DO pin is at the high impedance level, and the
CLK and DI pins would not accept input.
CLK
Input
This is the shift clock input pin for serial data transfer.
In the write mode, it takes in data from the DI pin using the CLK signal rise edge. In the
read mode, it outputs data from the DO pin using the fall edge.
D I
Input
This is the data input pin for serial data transfer.
DO
Output
This is the data output pin for serial data transfer.
FOUT
Output
This is the C-MOS output pin with output control provided via the FOE pin.
When FOE = "H" (high level), this pin outputs a 32.768-kHz signal.
When output is stopped, the FOUT pin = "L" (low level).
FOE
Input
This is an input pin used to control the output mode of the FOUT pin.
When this pin's level is high, the FOUT pin is in output mode. When it is low, output via
the FOUT pin is stopped.
/ IRQ
Output
This is an open drain output pin for alarm and additional counter interrupt.
T1
This pin is used by the manufacturer for testing.
Be sure to connect this pin to GND.
VDD
This pin connects to the plus side of the power.
GND
This pin connects to the minus side (ground) of the power.
Note: Be sure to connect a bypass capacitor rated at least 0.1 μF between VDD and GND.
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