AT89C4051-12PA View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT89C4051-12PA

8-Bit Microcontroller with 4K Bytes Flash

Atmel Corporation 

Figure 3. Programming the Flash Memory

AT89C4051

Figure 4. Verifying the Flash Memory

AT89C4051

PP

Flash Programming and Verification Characteristics

TA = 0°C to 70°C, VCC = 5.0 ± 10%

Symbol

Parameter

VPP

Programming Enable Voltage

IPP

Programming Enable Current

tDVGL

Data Setup to PROG Low

tGHDX

Data Hold After PROG

tEHSH

P3.4 (ENABLE) High to VPP

tSHGL

VPP Setup to PROG Low

tGHSL

VPP Hold After PROG

tGLGH

PROG Width

tELQV

ENABLE Low to Data Valid

tEHQZ

Data Float After ENABLE

tGHBL

PROG High to BUSY Low

tWC

Byte Write Cycle Time

tBHIH

RDY/BSY\ to Increment Clock Delay

tIHIL

Increment Clock High

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

Min

Max

Units

11.5

12.5

V

250

µA

1.0

µs

1.0

µs

1.0

µs

10

µs

10

µs

1

110

µs

1.0

µs

0

1.0

µs

50

ns

2.0

ms

1.0

µs

200

ns

8

AT89C4051

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