AT89LS51(1997) View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT89LS51
(Rev.:1997)

8-Bit Microcontroller with 4K Bytes Flash

Atmel Corporation 

Flash Programming and Verification Characteristics

TA = 0°C to 70°C, VCC = 5.0V ± 10%

Symbol

Parameter

VPP(1)

IPP(1)

Programming Enable Voltage

Programming Enable Current

1/tCLCL

Oscillator Frequency

tAVGL

Address Setup to PROG Low

tGHAX

Address Hold After PROG

tDVGL

Data Setup to PROG Low

tGHDX

Data Hold After PROG

tEHSH

P2.7 (ENABLE) High to VPP

tSHGL

tGHSL(1)

VPP Setup to PROG Low

VPP Hold After PROG

tGLGH

PROG Width

tAVQV

Address to Data Valid

tELQV

ENABLE Low to Data Valid

tEHQZ

Data Float After ENABLE

tGHBL

PROG High to BUSY Low

tWC

Byte Write Cycle Time

Note: 1. Only used in 12-volt programming mode.

Min

11.5

3

48tCLCL

48tCLCL

48tCLCL

48tCLCL

48t CLCL

10

10

1

0

Max

12.5

25

12

110

48t CLCL

48tCLCL

48tCLCL

1.0

2.0

Units

V

µA

MHz

µs

µs

µs

µs

ms

4-52

Not

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