IS89C52 Просмотр технического описания (PDF) - Integrated Silicon Solution

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IS89C52

CMOS SINGLE CHIP 8-BIT MICROCONTROLLER with 8-Kbytes of FLASH

Integrated Silicon Solution 

IS89C52

ISSI ®

FLASH PROGRAMMING AND VERIFICATION CHARACTERISTICS AND WAVEFORMS

Table 16. Flash Programming and Verification Characteristics(1)

Symbol Parameter

Min

VPP

Programming Supply Voltage

11.5

1/tCLCL

Oscillator Frequency

3.5

tAVGL

Address Setup to PROG Low

48

tGHAX

Address Hold after PROG

48

tDVGL

Data Setup to PROG Low

48

tGHDX

Data Hold after PROG

48

tEHSH

COND ENABLE to VPPH

48

tSHGL

VPPH Setup to PROG Low

10

tGHSL

VPPH Hold after PROG

10

tGLGH

PROG Pulse Width

120

tGHGL

PROG High to PROG Low

10

tAVQV

Address to Data Valid

—

tELQV

COND ENABLE to Data Valid

—

tEHQZ

Data Float after COND DISABLE

—

tGLGHE

Erase PROG Pulse Width

200

tELPL

COND DISABLE to Power Low

0

tPLPH

Power Off Time

10

tPHEH

Power On to VPPL

10

tEHVH

VPPL to COND ENABLE

0

Max

12.5

12

—

—

—

—

—

—

—

—

—

48

48

48

—

—

—

—

—

Unit

V

MHz

tCLCL

tCLCL

tCLCL

tCLCL

tCLCL

µs

µs

µs

µs

tCLCL

tCLCL

tCLCL

ms

ns

µs

ms

ns

Notes:

1. TA = 21°C to 27°C, Vcc = 5.0V ± 10%.

2. COND ENABLE and COND DISABLE are generated and depend on the control signals on pins P2.6,

P2.7, P3.6 and P3.7. The signals set the device in to and out of different processing conditions, such

as programming condition, erasing condition, and verify condition.

Integrated Silicon Solution, Inc. — 1-800-379-4774

41

MC013-1C

11/21/98

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