T89C51RC2-3CSIM datasheet(91/117 Pages) ATMEL

tên linh kiện	T89C51RC2-3CSIM

Giải thích chi tiết về linh kiện	8-bit Microcontroller with 16K/ 32K Bytes Flash

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nhà sản xuất	ATMEL [ATMEL Corporation]

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T89C51RB2/RC2

4105D–8051–10/06

Flash EEPROM Programming

and Verification Waveforms

Figure 41. Flash EEPROM Programming and Verification Waveforms

External Clock Drive

Characteristics (XTAL1)

Table 69. External Clock Drive Characteristics (XTAL1)

External Clock Drive

Waveforms

Figure 42. External Clock Drive Waveforms

AC Testing Input/Output

Waveforms

Figure 43. AC Testing Input/Output Waveforms

AC inputs during testing are driven at VCC - 0.5 for a logic “1” and 0.45V for a logic “0”.

Timing measurement are made at VIH min. for a logic “1” and VIL max for a logic “0”.

EHAZ

ALE/PROG

AVGL

TDVGL

P1.0-P1.7

P2.0-P2.4

P3.4-P3.5

CONTROL

SIGNALS

(ENABLE)

ADDRESS

DATA IN

GHAX

GHDX

GLGH

ADDRESS

DATA OUT

TAVQV

TELQV

TEHQZ

PROGRAMMING

VERIFICATION

Symbol

Parameter

Min

Max

Units

CLCL

Oscillator Period

CHCX

High Time

CLCX

Low Time

CLCH

Rise Time

CHCL

Fall Time

CHCX/TCLCX

Cyclic ratio in X2 mode

VCC-0.5V

0.45V

0.7VCC

0.2VCC-0.1

TCHCL

TCLCX

TCLCL

TCLCH

TCHCX

INPUT/OUTPUT

0.2 VCC + 0.9

0.2 V

CC - 0.1

VCC -0.5V

0.45V

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