AT89LS52-16AUR datasheet, PDF - EEWORLD Datasheet

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AT89LS52-16AUR: DescriptionIC MCU 8BIT 8KB FLASH 44TQFP; CategoryThe embedded processor and controller Microcontrollers and processors; File Size575KB，39 Pages; ManufacturerMicrochip; Websitehttps://www.microchip.com

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AT89LS52-16AUR Overview

IC MCU 8BIT 8KB FLASH 44TQFP

AT89LS52-16AUR Parametric

Parameter Name	Attribute value
Is it lead-free?	Lead free
Maker	Microchip
package instruction	LFBGA-144
Reach Compliance Code	compliant
Has ADC	NO
Address bus width	16
bit size	8
maximum clock frequency	16 MHz
DAC channel	NO
DMA channel	NO
External data bus width	8
JESD-30 code	S-PQFP-G44
length	10 mm
Number of I/O lines	32
Number of terminals	44
On-chip program ROM width	8
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
PWM channel	NO
Package body material	PLASTIC/EPOXY
encapsulated code	TQFP
Package shape	SQUARE
Package form	FLATPACK, THIN PROFILE
ROM programmability	FLASH
Filter level	TS 16949
Maximum seat height	1.2 mm
speed	16 MHz
Maximum supply voltage	4 V
Minimum supply voltage	2.7 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal form	GULL WING
Terminal pitch	0.8 mm
Terminal location	QUAD
width	10 mm
uPs/uCs/peripheral integrated circuit type	MICROCONTROLLER

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Features

•

Compatible with MCS

-51 Products

•

8K Bytes of In-System Programmable (ISP) Flash Memory

•

– Endurance: 10,000 Write/Erase Cycles

2.7V to 4.0V Operating Range

Fully Static Operation: 0 Hz to 16 MHz

Three-level Program Memory Lock

256 x 8-bit Internal RAM

32 Programmable I/O Lines

Three 16-bit Timer/Counters

Eight Interrupt Sources

Full Duplex UART Serial Channel

Low-power Idle and Power-down Modes

Interrupt Recovery from Power-down Mode

Watchdog Timer

Dual Data Pointer

Power-off Flag

Flexible ISP Programming (Byte and Page Modes)

Green (Pb/Halide-free) Packaging Option

1. Description

The AT89LS52 is a low-voltage, high-performance CMOS 8-bit microcontroller with

8K bytes of in-system programmable Flash memory. The device is manufactured

using Atmel’s high-density nonvolatile memory technology and is compatible with the

industry-standard 80C51 instruction set and pinout. The on-chip Flash allows the pro-

gram memory to be reprogrammed in-system or by a conventional nonvolatile

memory programmer. By combining a versatile 8-bit CPU with in-system programma-

ble Flash on a monolithic chip, the Atmel AT89LS52 is a powerful microcontroller

which provides a highly-flexible and cost-effective solution to many embedded control

applications.

The AT89LS52 provides the following standard features: 8K bytes of Flash, 256 bytes

of RAM, 32 I/O lines, Watchdog timer, two data pointers, three 16-bit timer/counters, a

six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator,

and clock circuitry. In addition, the AT89LS52 is designed with static logic for opera-

tion down to zero frequency and supports two software selectable power saving

modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial

port, and interrupt system to continue functioning. The Power-down mode saves the

RAM contents but freezes the oscillator, disabling all other chip functions until the next

external interrupt or hardware reset.

8-bit

Low-Voltage

Microcontroller

with 8K Bytes

In-System

Programmable

Flash

AT89LS52

2601C–MICRO–06/08

4. Pin Description

4.1

VCC

Supply voltage.

4.2

GND

Ground.

4.3

Port 0

Port 0 is an 8-bit open drain bi-directional I/O port. As an output port, each pin can sink eight TTL

inputs. When 1s are written to port 0 pins, the pins can be used as high-impedance inputs.

Port 0 can also be configured to be the multiplexed low-order address/data bus during accesses

to external program and data memory. In this mode, P0 has internal pull-ups.

Port 0 also receives the code bytes during Flash programming and outputs the code bytes dur-

ing program verification.

External pull-ups are required during program verification.

4.4

Port 1

Port 1 is an 8-bit bi-directional I/O port with internal pull-ups. The Port 1 output buffers can

sink/source four TTL inputs. When 1s are written to Port 1 pins, they are pulled high by the inter-

nal pull-ups and can be used as inputs. As inputs, Port 1 pins that are externally being pulled low

will source current (I

) because of the internal pull-ups.

In addition, P1.0 and P1.1 can be configured to be the timer/counter 2 external count input

(P1.0/T2) and the timer/counter 2 trigger input (P1.1/T2EX), respectively, as shown in the follow-

ing table.

Port 1 also receives the low-order address bytes during Flash programming and verification.

Port Pin

P1.0

P1.1

P1.5

P1.6

P1.7

Alternate Functions

T2 (external count input to Timer/Counter 2), clock-out

T2EX (Timer/Counter 2 capture/reload trigger and direction control)

MOSI (used for In-System Programming)

MISO (used for In-System Programming)

SCK (used for In-System Programming)

4.5

Port 2

Port 2 is an 8-bit bi-directional I/O port with internal pull-ups. The Port 2 output buffers can

sink/source four TTL inputs. When 1s are written to Port 2 pins, they are pulled high by the inter-

nal pull-ups and can be used as inputs. As inputs, Port 2 pins that are externally being pulled low

will source current (I

) because of the internal pull-ups.

Port 2 emits the high-order address byte during fetches from external program memory and dur-

ing accesses to external data memory that use 16-bit addresses (MOVX @ DPTR). In this

application, Port 2 uses strong internal pull-ups when emitting 1s. During accesses to external

data memory that use 8-bit addresses (MOVX @ RI), Port 2 emits the contents of the P2 Special

Function Register.

AT89LS52

2601C–MICRO–06/08

AT89LS52

Port 2 also receives the high-order address bits and some control signals during Flash program-

ming and verification.

4.6

Port 3

Port 3 is an 8-bit bi-directional I/O port with internal pull-ups. The Port 3 output buffers can

sink/source four TTL inputs. When 1s are written to Port 3 pins, they are pulled high by the inter-

nal pull-ups and can be used as inputs. As inputs, Port 3 pins that are externally being pulled low

will source current (I

) because of the pull-ups.

Port 3 receives some control signals for Flash programming and verification.

Port 3 also serves the functions of various special features of the AT89LS52, as shown in the

following table.

Port Pin

P3.0

P3.1

P3.2

P3.3

P3.4

P3.5

P3.6

P3.7

Alternate Functions

RXD (serial input port)

TXD (serial output port)

INT0 (external interrupt 0)

INT1 (external interrupt 1)

T0 (timer 0 external input)

T1 (timer 1 external input)

WR (external data memory write strobe)

RD (external data memory read strobe)

4.7

RST

Reset input. A high on this pin for two machine cycles while the oscillator is running resets the

device. This pin drives High for 98 oscillator periods after the Watchdog times out. The DISRTO

bit in SFR AUXR (address 8EH) can be used to disable this feature. In the default state of bit

DISRTO, the RESET HIGH out feature is enabled.

4.8

ALE/PROG

Address Latch Enable (ALE) is an output pulse for latching the low byte of the address during

accesses to external memory. This pin is also the program pulse input (PROG) during Flash

programming.

In normal operation, ALE is emitted at a constant rate of 1/6 the oscillator frequency and may be

used for external timing or clocking purposes. Note, however, that one ALE pulse is skipped dur-

ing each access to external data memory.

If desired, ALE operation can be disabled by setting bit 0 of SFR location 8EH. With the bit set,

ALE is active only during a MOVX or MOVC instruction. Otherwise, the pin is weakly pulled high.

Setting the ALE-disable bit has no effect if the microcontroller is in external execution mode.

4.9

PSEN

Program Store Enable (PSEN) is the read strobe to external program memory.

When the AT89LS52 is executing code from external program memory, PSEN is activated twice

each machine cycle, except that two PSEN activations are skipped during each access to exter-

nal data memory.

2601C–MICRO–06/08

AT89LS52-16AUR Related Products

	AT89LS52-16AUR	AT89LS52-16AU	AT89LS52-16PU	AT89LS52-16AC	AT89LS52-16AI	AT89LS52-16JC	AT89LS52-16JI	AT89LS52-16PC
Description	IC MCU 8BIT 8KB FLASH 44TQFP	8-bit Microcontrollers - MCU LO-VLTG 8K ISP FLASH -16MHZ 2.7-5.5V	IC MCU 8BIT 8KB FLASH 40DIP	IC MCU 8BIT 8KB FLASH 44TQFP	IC MCU 8BIT 8KB FLASH 44TQFP	IC MCU 8BIT 8KB FLASH 44PLCC	IC MCU 8BIT 8KB FLASH 44PLCC	IC MCU 8BIT 8KB FLASH 40DIP
speed	16 MHz	16 MHz	16 MHz	16MHz	16MHz	16MHz	16MHz	16MHz
core processor	-	-	-	8051	8051	8051	8051	8051
core size	-	-	-	8-bit	8-bit	8-bit	8-bit	8-bit
Connectivity	-	-	-	UART/USART	UART/USART	UART/USART	UART/USART	UART/USART
Peripheral	-	-	-	WDT	WDT	WDT	WDT	WDT
Number of I/Os	-	-	-	32	32	32	32	32
Program storage capacity	-	-	-	8KB（8K x 8）	8KB（8K x 8）	8KB（8K x 8）	8KB（8K x 8）	8KB（8K x 8）
Program memory type	-	-	-	flash memory	flash memory	flash memory	flash memory	flash memory
RAM capacity	-	-	-	256 x 8	256 x 8	256 x 8	256 x 8	256 x 8
Voltage - Power Supply (Vcc/Vdd)	-	-	-	2.7 V ~ 4 V	2.7 V ~ 4 V	2.7 V ~ 4 V	2.7 V ~ 4 V	2.7 V ~ 4 V
Oscillator type	-	-	-	internal	internal	internal	internal	internal
Operating temperature	-	-	-	0°C ~ 70°C（TA）	-40°C ~ 85°C（TA）	0°C ~ 70°C（TA）	-40°C ~ 85°C（TA）	0°C ~ 70°C（TA）
Package/casing	-	-	-	44-TQFP	44-TQFP	44-LCC (J-lead)	44-LCC (J-lead)	40-DIP（0.600"，15.24mm）
Supplier device packaging	-	-	-	44-TQFP（10x10）	44-TQFP（10x10）	44-PLCC（16.59x16.59）	44-PLCC（16.59x16.59）	40-PDIP

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