ST72C254G2 datasheet(112/140 Pages) STMICROELECTRONICS

부품명	ST72C254G2

상세설명	8-BIT MCU WITH SINGLE VOLTAGE FLASH MEMORY, ADC, 16-BIT TIMERS, SPI, IC INTERFACES

PDF	140 Pages

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제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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112 / 140 page

ST72104G, ST72215G, ST72216G, ST72254G

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14.6 MEMORY CHARACTERISTICS

Subject to general operating conditions for VDD, fOSC, and TA unless otherwise specified.

14.6.1 RAM and Hardware Registers

14.6.2 FLASH Program Memory

Notes:

1. Minimum VDD supply voltage without losing data stored in RAM (in HALT mode or under RESET) or in hardware reg-

isters (only in HALT mode). Guaranteed by construction, not tested in production.

2. Data based on characterization results, tested in production at TA=25°C.

3. Up to 16 bytes can be programmed at a time for a 4kBytes FLASH block (then up to 32 bytes at a time for an 8k device)

4. The data retention time increases when the TA decreases.

5. Data based on reliability test results and monitored in production.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VRM

Data retention mode 1)

HALT mode (or RESET)

1.6

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

TA(prog)

Programming temperature range 2)

025

°C

tprog

Programming time for 1~16 bytes 3) TA=+25°C

Programming time for 4 or 8kBytes

TA=+25°C

2.1

6.4

sec

tret

Data retention 5)

TA=+55°C

years

NRW

Write erase cycles 5)

TA=+25°C

100

cycles

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