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参数资料
| 型号： | RTC-72421A |
| 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, PDIP18 |
| 封装： | DIP-18 |
| 文件页数： | 25/26页 |
| 文件大小： | 192K |
| 代理商： | RTC-72421A |
RTC - 72421 / 72423
Page - 4
MQ162-04
! Characteristics
1. Absolute maximum ratings
Item
Symbol
Condition
Specification
Unit
Supply voltage
VDD
Ta=+25
°C
0.3 to 7.0
V
Input voltage
VI
Ta=+25
°C
GND
0.3 to VDD+0.3
V
Output voltage
VO
Ta=+25
°C
GND
0.3 to VDD+0.3
V
RTC-72421
55 to +85
°C
Storage temperature
TSTG
RTC-72423
55 to +125
°C
RTC-72421 ;
Under 10 seconds below a temperature of +260
°C on leads
( Package Max. +150
°C )
Soldering condition
TSOL
RTC-72423 ;
Max. 2 times under 10 seconds below a temperature of +260
°C or
for 3 minutes below a temperature of +230
°C
2. Recommended operating conditions
Item
Symbol
Condition
Specification
Unit
Supply voltage
VDD
4.5
to
5.5
V
RTC-72421 ;
10 to +70
°C
Operating temperature
TOPR
No condensation
RTC-72423 ;
40 to +85
°C
Data hold voltage
VDH
2.0
to
5.5
V
CS1 data hold time
tCDR
Operation recovery time
tr
See the section on data
hold timing
2.0 Min.
s
3. Frequency characteristics and current consumption characteristics
Item
Symbol
Condition
Specification
Unit
RTC-72421A
± 10
RTC-72421B
± 50
RTC-72423A
± 20
Frequency tolerance
f/f0
Ta=+25
°C
VDD=5.0 V
RTC-72423
± 50
RTC-72421 :
10 °C to +70 °C
(+25
°C reference)
+10 /
120
Operation temperature
RTC-72423 :
40 °C to +85 °C
(+25
°C reference)
+10 /
220
× 10
-6
Frequency voltage
characteristics
Ta=+25
°C
VDD=2.0 V to 5.5 V
± 5 Max.
× 10
-6 / V
Aging
fa
VDD=5.0 V, Ta=+25
°C
± 5 Max.
× 10
-6 / year
Shock resistance
S.R.
Drop test 3 times on a hard board from
0.75 m height, or 29400 m/s
2 × 0.2 ms ×
1/2 sin wave
× 3 directions
± 10 Max.
× 10
-6
IDD1
VDD=5.0 V
1.0 Typ.
10 Max.
Current consumption
IDD2
Ta=+25
°C, CS1=0 V
I/O currents excluded
VDD=2.0 V
0.9 Typ.
5 Max.
A
4. Electrical characteristics ( DC characteristics )
Item
Symbol
Condition
Applicable pins
Min.
Typ.
Max.
Unit
High input voltage 1
VIH1
2.2
V
Low input voltage 1
VIL1
All input pins except for
CS1
0.8
High input voltage 2
VIH2
4/5VDD
Low input voltage 2
VIL2
VDD=2.0 V to
5.5 V
CS1
1/5VDD
V
Input leakage current 1
ILK1
Input pins except for
D0 to D3
1/-1
A
Input leakage current 2
ILK2
VI=VDD/0 V
10/-10
Low output voltage 1
VOL1
IOL=2.5 mA
0.4
High output voltage
VOH
IOH=-400
A
D0 to D3
2.4
Low output voltage 2
VOL2
IOL=2.5 mA
0.4
V
Off-state leakage current
IOFFLK
VI = VDD / 0 V
STD.P
10/-10
A
Input capacitance
CI
Input pins except for
D0 to D3
10
Input-output capacitance
CI/O
Input
frequency
1 MHz
D0 to D3 and STD.P
20
pF
相关PDF资料 |
PDF描述 |
|---|---|
| RTC-72421B | 0 TIMER(S), REAL TIME CLOCK, PDIP18 |
| RTC-72423A-0 | 0 TIMER(S), REAL TIME CLOCK, PDSO24 |
| RTC-72423B-0 | REAL TIME CLOCK, PDSO24 |
| RTC-72423A-0 | 0 TIMER(S), REAL TIME CLOCK, PDSO24 |
| RTC-72423B-0 | REAL TIME CLOCK, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RTC72421AROHS | 制造商:Epson Electronics America Inc 功能描述:Real Time Clock Parallel 18-Pin PDIP |
| RTC72421B | 制造商:Epson Toyocom Corporation 功能描述:IC RTC 72421 DIP18 制造商:Epson Toyocom Corporation 功能描述:IC, RTC, 72421, DIP18 制造商:Epson Toyocom Corporation 功能描述:IC, RTC; Clock Format:12Hr / 24Hr; Clock IC Type:RTC; Supply Voltage Min:4.5V; Supply Voltage Max:5.5V; Digital IC Case Style:DIP; No. of Pins:18; Operating Temperature Min:-40C; Operating Temperature Max:85C; Package / Case:18-DIP;RoHS Compliant: Yes |
| RTC-72421B | 功能描述:IC REAL TIME CLOCK 18-DIP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 实时时钟 系列:- 产品培训模块:Obsolescence Mitigation Program 标准包装:1 系列:- 类型:时钟/日历 特点:警报器，闰年，SRAM 存储容量:- 时间格式:HH:MM:SS（12/24 小时） 数据格式:YY-MM-DD-dd 接口:SPI 电源电压:2 V ~ 5.5 V 电压 - 电源，电池:- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:8-WDFN 裸露焊盘 供应商设备封装:8-TDFN EP 包装:管件 |
| RTC-72421B PURE SN | 制造商:Epson Electronics America Inc 功能描述:REAL TIME CLOCK MODULE 4-BIT |
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