AT89LV51 ATMEL Corporation, AT89LV51 Datasheet

AT89LV51

Manufacturer Part Number

AT89LV51

Description

Manufacturer

ATMEL Corporation

Datasheet

1.AT89LV51.pdf (16 pages)

Specifications of AT89LV51

Case

QFP

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Features

•

Description

The AT89LV51 is a low-voltage, high-performance CMOS 8-bit microcomputer with

4K bytes of Flash Programmable and Erasable Read Only Memory. The device is

manufactured using Atmel’s high density nonvolatile memory technology and is com-

patible with the industry standard MCS-51™ instruction set and pinout. The on-chip

Flash allows the program memory to be reprogrammed in-system or by a conven-

tional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash

on a monolithic chip, the Atmel AT89LV51 is a powerful microcomputer which pro-

vides a highly flexible and cost effective solution to many embedded control applica-

tions. The AT89LV51 operates at 2.7 volts up to 6.0 volts.

Pin Configurations

(

( R X D ) P 3 . 0

Compatible with MCS-51™ Products

4K Bytes of Reprogrammable Flash Memory

2.7V to 6V Operating Range

Fully Static Operation: 0 Hz to 12 MHz

Three-Level Program Memory Lock

128 x 8-Bit Internal RAM

32 Programmable I/O Lines

Two 16-Bit Timer/Counters

Six Interrupt Sources

Programmable Serial Channel

Low Power Idle and Power Down Modes

( T X D ) P 3 . 1

I N T 0

I N T 1

( T 0 ) P 3 . 4

( T 1 ) P 3 . 5

I N D E X

C O R N E R

– Endurance: 1,000 Write/Erase Cycles

) P 3 . 2

) P 3 . 3

P 1 . 5

P 1 . 6

P 1 . 7

R S T

N C

1 0

1 1

4 4

1 2

4 3

1 3

4 2

1 4

4 1

1 5

TQFP

4 0

1 6

3 9

1 7

1 8

1 9

3 6

2 0

3 5

2 1

3 4

2 2

2 6

3 3

3 2

3 0

2 9

2 8

2 7

2 5

2 4

2 3

3 1

P 0 . 4 ( A D 4 )

P 0 . 5 ( A D 5 )

P 0 . 6 ( A D 6 )

P 0 . 7 ( A D 7 )

E A / V P P

N C

A L E / P R O G

P S E N

P 2 . 7 ( A 1 5 )

P 2 . 6 ( A 1 4 )

P 2 . 5 ( A 1 3 )

(

( R X D ) P 3 . 0

( T X D ) P 3 . 1

I N T 0

I N T 1

( T 0 ) P 3 . 4

( T 1 ) P 3 . 5

I N D E X

C O R N E R

(

( R X D ) P 3 . 0

( T X D ) P 3 . 1

) P 3 . 2

) P 3 . 3

I N T 0

I N T 1

(

( T 0 ) P 3 . 4

( T 1 ) P 3 . 5

P 1 . 5

W R

P 1 . 6

P 1 . 7

R D

R S T

N C

) P 3 . 2

) P 3 . 3

) P 3 . 6

) P 3 . 7

X TA L 2

X TA L 1

P 1 . 0

P 1 . 1

P 1 . 2

P 1 . 3

P 1 . 4

P 1 . 5

P 1 . 6

P 1 . 7

G N D

R S T

1 0

1 1

1 2

1 3

1 4

1 5

1 6

1 7

1 8

1 9

2 0

2 1

1 0

1 1

1 2

1 3

1 4

1 5

1 6

1 7

1 8

1 9

2 0

PLCC

2 2

PDIP

2 3

4 4

2 4

4 3

2 5

4 0

3 9

3 8

3 7

3 6

3 5

3 4

3 3

3 2

2 8

2 7

2 6

2 5

2 4

2 3

2 2

2 1

3 1

3 0

2 9

4 2

2 6

4 1

2 7

4 0

2 8

(continued)

3 9

3 6

3 5

3 4

3 3

3 2

3 1

3 0

2 9

V C C

P 0 . 0 ( A D 0 )

P 0 . 1 ( A D 1 )

P 0 . 2 ( A D 2 )

P 0 . 3 ( A D 3 )

P 0 . 4 ( A D 4 )

P 0 . 5 ( A D 5 )

P 0 . 6 ( A D 6 )

P 0 . 7 ( A D 7 )

E A / V P P

A L E / P R O G

P S E N

P 2 . 7 ( A 1 5 )

P 2 . 6 ( A 1 4 )

P 2 . 5 ( A 1 3 )

P 2 . 4 ( A 1 2 )

P 2 . 3 ( A 1 1 )

P 2 . 0 ( A 8 )

P 2 . 2 ( A 1 0 )

P 2 . 1 ( A 9 )

P 0 . 4 ( A D 4 )

P 0 . 5 ( A D 5 )

P 0 . 6 ( A D 6 )

P 0 . 7 ( A D 7 )

E A / V P P

N C

A L E / P R O G

P S E N

P 2 . 7 ( A 1 5 )

P 2 . 6 ( A 1 4 )

P 2 . 5 ( A 1 3 )

8-Bit

Microcontroller

with 4K Bytes

Flash

AT89LV51

Not Recommended

for New Designs.

Use AT89LS51.

0303D-D–12/97

4-45

Related parts for AT89LV51

AT89LV51 Summary of contents

Page 1

... Flash allows the program memory to be reprogrammed in-system conven- tional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89LV51 is a powerful microcomputer which pro- vides a highly flexible and cost effective solution to many embedded control applica- tions ...

Page 2

Block Diagram 4-46 Not ...

Page 3

... PSEN Program Store Enable is the read strobe to external pro- gram memory. When the AT89LV51 is executing code from external pro- gram memory, PSEN is activated twice each machine cycle, except that two PSEN activations are skipped during each access to external data memory. ...

Page 4

... In that case, the reset or inactive values of the new bits will always be 0. Timer 0 and 1 Timer 0 and Timer 1 in the AT89LV51 operate the same way as Timer 0 and Timer 1 in the AT89C51. RCAP2L RCAP2H ...

Page 5

Oscillator Characteristics XTAL1 and XTAL2 are the input and output, respectively inverting amplifier which can be configured for use as an on-chip oscillator, as shown in Figure 1. Either a quartz crystal or ceramic resonator may be used. ...

Page 6

... Programming Algorithm: Before programming the AT89LV51, the address, data and control signals should be (1) set up according to the Flash programming mode table and Figure 3 and Figure 4. To program the AT89LV51, the fol- lowing sequence should be followed: 1. Input the desired memory location on the address lines. ...

Page 7

... Write Code Data H Read Code Data H Write Lock Bit - 1 H Bit - 2 H Bit - 3 H Chip Erase H Read Signature Byte H Note: 1. Chip Erase requires a 10-ms PROG pulse. Figure 3. Programming the Flash AT89LV51 ADDR. P1 OOOOH/OFFFH P2 A11 P2.6 SEE FLASH P2.7 PROGRAMMING P3.6 MODES ABLE T P3.7 XTAL2 3-12 MHz XTAL1 ...

Page 8

Flash Programming and Verification Characteristics T = 0°C to 70° 5.0V 10 Symbol Parameter (1) V Programming Enable Voltage PP (1) I Programming Enable Current PP 1/t Oscillator Frequency CLCL t Address Setup to PROG Low ...

Page 9

Flash Programming and Verification Waveforms (V P1.0 - P1.7 P2.0 - P2.3 PORT 0 ALE/PROG EA/V PP P2.7 (ENABLE) P3.4 (RDY/BSY) PROGRAMMING ADDRESS DATA DVGL GHDX t AVGL t SHGL t GLGH EHSH t ...

Page 10

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 Characteristics T = -40°C ...

Page 11

AC Characteristics Under operating conditions, load capacitance for Port 0, ALE/PROG, and PSEN = 100 pF; load capacitance for all other outputs = 80 pF. External Program and Data Memory Characteristics Symbol Parameter 1/t Oscillator Frequency CLCL t ALE Pulse ...

Page 12

External Program Memory Read Cycle t LHLL ALE t AVLL PSEN PORT 0 PORT 2 External Data Memory Read Cycle t LHLL ALE PSEN RD t AVLL PORT FROM RI OR DPL PORT 2 P2.0 - ...

Page 13

External Data Memory Write Cycle t LHLL ALE PSEN WR t AVLL PORT FROM RI OR DPL PORT 2 P2 A15 FROM DPH External Clock Drive Waveforms t CHCX V - ...

Page 14

Serial Port Timing: Shift Register Mode Test Conditions (V = 2.7V to 6V; Load Capacitance = 80 pF) CC Symbol Parameter t Serial Port Clock Cycle Time XLXL t Output Data Setup to Clock Rising Edge QVXH t Output Data ...

Page 15

... TYPICAL ICC (ACTIVE (MHz) AT89LV51 ICC (mA) TYPICAL ICC (IDLE 4.8 4.0 3.2 2.4 1.6 0.8 0 (MHz) AT89LV51 TYPICAL ICC vs. VOLTAGE- POWER DOWN (85° µ 3.0V 4.0V 5.0V Vcc VOLTAGE o VCC = 6.0 V VCC = 5.0 V VCC = 3 VCC = 6.0 V VCC = 5.0 V VCC = 3 ...

Page 16

... Lead, Thin Plastic Gull Wing Quad Flatpack (TQFP) 44J 44 Lead, Plastic J-Leaded Chip Carrier (PLCC) 40P6 40 Lead, 0.600" Wide, Plastic Dull Inline Package (PDIP) 4-60 Ordering Code AT89LV51-12AC AT89LV51-12JC AT89LV51-12PC AT89LV51-12AI AT89LV51-12JI AT89LV51-12PI Package Type Not Package Operation Range 44A Commercial 44J ( 40P6 ...

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