Datasheet > HT45R22E

HT45R22E

更新时间： 2022-12-18 00:52:45

品牌	Logo	应用领域
台湾合泰/盛群 - HOLTEK		遥控可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
72页	409K
描述
Remote Type 8-bit OTP MCU with EEPROM

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中文翻译

获取价格

数据手册

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HT45R22E 数据手册

HT45R22E

Ta=25°C

Test Conditions

Conditions

Symbol

Parameter

Min.

Typ.

Max.

Unit

V_DD

t_SYS

For HXT/LXT

1024

t_SST

System Start-up time Period

For ERC/IRC

(By configuration option)

t_INT

Interrupt Pulse Width

t_LVR

Low Voltage Width to Reset

0.25

RESTD Reset Delay Time

100

Note: 1. t_SYS=1/f_SYS

2. * For f_ERC, as the resistor tolerance will influence the frequency a precision resistor is recommended.

3. To maintain the accuracy of the internal HIRC oscillator frequency, a 0.1mF decoupling capacitor should

be connected between V_DDand V_SSand located as close to the device as possible.

EEPROM - A.C. Characteristics

Standard Mode*

V_CC=3V±10%

Symbol

Parameter

Clock Frequency

Remark

Unit

Min.

Max.

100

Min.

Max.

400

f_SK

t_HIGH

t_LOW

t_r

kHz

Clock High Time

4000

4700

600

1200

Clock Low Time

SDA and SCL Rise Time

SDA and SCL Fall Time

Note

1000

300

t_f

After this period the first

clock pulse is generated

t_HD:STA

START Condition Hold Time

START Condition Setup Time

4000

600

Only relevant for repeated

START condition

t_SU:STA

t_HD:DAT

t_SU:DAT

t_SU:STO

t_AA

Data Input Hold Time

Data Input Setup Time

STOP Condition Setup Time

Output Valid from Clock

200

4000

100

600

3500

900

Time in which the bus

t_BUF

Bus Free Time

must be free before a new 4700

transmission can start

1200

Input Filter Time Constant

(SDA and SCL Pins)

t_SP

Noise suppression time

100

t_WR

Write Cycle Time

Notes: These parameters are periodically sampled but not 100% tested

* The standard mode means V_CC=2.2V to 3.6V

For relative timing, refer to timing diagrams

Rev. 1.00

March 17, 2010

1...4 5 678 9 10...72

中文翻译

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