AT89LS51-16SC View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

AT89LS51-16SC

8-bit Low-Voltage Microcontroller with 4K Bytes In-System Programmable Flash

Atmel Corporation 

20. Serial Programming Characteristics

Figure 20-1. Serial Programming Timing

AT89LS51

MOSI

tOVSH

SCK

MISO

tSHSL

tSHOX

tSLSH

tSLIV

Table 20-1. Serial Programming Characteristics, TA = -40°C to 85°C, VCC = 2.7V - 4.0V (Unless Otherwise Noted)

Symbol Parameter

Min

Typ

Max

Units

1/tCLCL

tCLCL

tSHSL

tSLSH

tOVSH

tSHOX

tSLIV

tERASE

tSWC

Oscillator Frequency

Oscillator Period

SCK Pulse Width High

SCK Pulse Width Low

MOSI Setup to SCK High

MOSI Hold after SCK High

SCK Low to MISO Valid

Chip Erase Instruction Cycle Time

Serial Byte Write Cycle Time

3

62.5

8 tCLCL

8 tCLCL

tCLCL

2 tCLCL

10

16

MHz

ns

ns

ns

ns

ns

16

32

ns

500

ms

64 tCLCL + 400

µs

21. Absolute Maximum Ratings*

Operating Temperature.................................. -55°C to +125°C

Storage Temperature ..................................... -65°C to +150°C

Voltage on Any Pin

with Respect to Ground .....................................-1.0V to +7.0V

Maximum Operating Voltage ............................................ 6.6V

DC Output Current...................................................... 15.0 mA

*NOTICE:

Stresses beyond those listed under “Absolute

Maximum Ratings” may cause permanent dam-

age to the device. This is a stress rating only and

functional operation of the device at these or any

other conditions beyond those indicated in the

operational sections of this specification is not

implied. Exposure to absolute maximum rating

conditions for extended periods may affect

device reliability.

21

3053B–MICRO–3/05

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