ST7262 datasheet(107/139 Pages) STMICROELECTRONICS

部件名	ST7262

功能描述	LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, FLASH OR ROM MEMORY, LVD, WDG, 10-BIT ADC, 2 TIMERS, SCI, SPI

PDF	139 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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12.6 MEMORY CHARACTERISTICS

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

12.6.1 RAM and Hardware Registers

Note 1: Guaranteed by design. Not tested in production.

12.6.2 FLASH Memory

Operating Conditions: fCPU = 8 MHz.

Note:

1. Refer to the Flash Programming Reference Manual for the typical HDFlash programming and erase tim-

ing values.

Figure 60. Two typical Applications with VPP Pin

Note 1: When the ICP mode is not required by the application, VPP pin must be tied to VSS.

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

VRM

Data retention mode 1)

HALT mode (or RESET)

2.0

DUAL VOLTAGE FLASH MEMORY 1)

Symbol

Parameter

Conditions

Min

Typ

Max

Unit

fCPU

Operating Frequency

Read mode

MHz

Write / Erase mode,

TA=25°C

VPP

Programming Voltage

4.0V <= VDD <= 5.5V

11.4

12.6

IPP

VPP Current

Write / Erase

tVPP

Internal VPP Stabilization Time

µs

tRET

Data Retention

TA ≤ 55°C

years

NRW

Write Erase Cycles

TA=25°C

100

cycles

VPP

ST72XXX

10k

Ω

PROGRAMMING

TOOL

VPP

ST72XXX

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