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AT89S4D12

Description
8-Bit Microcontroller with 132K Bytes Flash Data Memory
File Size90KB,13 Pages
ManufacturerAtmel (Microchip)
Download Datasheet Compare View All

AT89S4D12 Overview

8-Bit Microcontroller with 132K Bytes Flash Data Memory

AT89S4D12
Features
Compatible with MCS-51
Products
128K Bytes of In-System Reprogrammable Flash data memory and 4K Bytes of
Downloadable Flash Program Memory
– Endurance: 1,000 Write/Erase Cycles per Sector
– Data Retention: 10 Years
Sector Programming: 128 Bytes/Sector
Single 3.3V
±
10% Supply
On-Chip 12 MHz oscillator
Two-Level Program Memory Lock
256-Bytes Internal RAM
5 Programmable I/O Lines
Serial Peripheral Interface (SPI) Channel
Serial Program Downloading
Dual Data Pointer Registers
Description
The AT89S4D12 is a low-voltage, highly integrated CMOS 8-bit microcomputer with
4K bytes of downloadable Flash program memory and 128K bytes of in-system repro-
grammable Flash data memory. The device is manufactured using Atmel’s high den-
sity Flash memory technology and is compatible with the industry-standard MCS-51
instruction set.
The 128K bytes of on-chip Flash data memory are accessed as two 64K byte blocks.
Bit 0 at SFR location 96H is used to select the active block. The MOVX instruction is
used to read and write the data memory. Both the program and data memory arrays
can be programmed by an external programmer.
The downloadable Flash can be changed one page (128 bytes) at a time and is
accessible through the SPI serial peripheral interface port. Holding RESET active
forces the SPI bus into a slave input mode and allows the program memory to be writ-
ten-from or read-to unless Lock Bit 2 has been activated.
The functional operations of the 128K bytes Flash data memory are equivalent to
those on the AT29LV010A 1M Bit Flash memory device.
8-Bit
Microcontroller
with
132K Bytes
Flash Data
Memory
AT89S4D12
Pin Configurations
SOIC Top View
GND
TEST1
RESET
SDI/P1.1
SDO/P1.0
TEST2
NC
NC
NC
NC
NC
NC
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VCC
P1.2/DTR
P1.3/SCK
P1.4/DSR
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
PLCC Top View
P1.1/SDI
RESET
TEST1
GND
VCC
P1.2/DTR
P1.3/SCK
NC
NC
NC
NC
NC
NC
NC
14
15
16
17
18
19
20
P1.0/SDO
TEST2
NC
NC
NC
NC
NC
NC
NC
5
6
7
8
9
10
11
12
13
4
3
2
1
32
31
30
29
28
27
26
25
24
23
22
21
P1.4/DSR
NC
NC
NC
NC
NC
NC
NC
NC
0921A-A–12/97
4-281

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Description 8-Bit Microcontroller with 132K Bytes Flash Data Memory 8-Bit Microcontroller with 132K Bytes Flash Data Memory 8-Bit Microcontroller with 132K Bytes Flash Data Memory 8-Bit Microcontroller with 132K Bytes Flash Data Memory 8-Bit Microcontroller with 132K Bytes Flash Data Memory
Is it Rohs certified? - incompatible incompatible incompatible incompatible
Maker - Atmel (Microchip) Atmel (Microchip) Atmel (Microchip) Atmel (Microchip)
Parts packaging code - QFJ QFJ SOIC SOIC
package instruction - QCCJ, LDCC32,.5X.6 QCCJ, LDCC32,.5X.6 SOP, SOP28,.5 SOP, SOP28,.5
Contacts - 32 32 28 28
Reach Compliance Code - compli compli unknow unknow
Has ADC - NO NO NO NO
bit size - 8 8 8 8
CPU series - 8051 8051 8051 8051
maximum clock frequency - 12 MHz 12 MHz 12 MHz 12 MHz
DAC channel - NO NO NO NO
DMA channel - NO NO NO NO
JESD-30 code - R-PQCC-J32 R-PQCC-J32 R-PDSO-G28 R-PDSO-G28
JESD-609 code - e0 e0 e0 e0
length - 13.97 mm 13.97 mm 18.25 mm 18.25 mm
Humidity sensitivity level - 2 2 2 2
Number of I/O lines - 5 5 5 5
Number of terminals - 32 32 28 28
Maximum operating temperature - 70 °C 85 °C 70 °C 85 °C
PWM channel - NO NO NO NO
Package body material - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - QCCJ QCCJ SOP SOP
Encapsulate equivalent code - LDCC32,.5X.6 LDCC32,.5X.6 SOP28,.5 SOP28,.5
Package shape - RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form - CHIP CARRIER CHIP CARRIER SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) - 225 225 225 225
power supply - 3.3 V 3.3 V 3.3 V 3.3 V
Certification status - Not Qualified Not Qualified Not Qualified Not Qualified
RAM (bytes) - 256 256 256 256
rom(word) - 4096 4096 135168 135168
ROM programmability - FLASH FLASH FLASH FLASH
Maximum seat height - 3.56 mm 3.56 mm 2.79 mm 2.79 mm
speed - 12 MHz 12 MHz 12 MHz 12 MHz
Maximum slew rate - 20 mA 20 mA 20 mA 20 mA
Maximum supply voltage - 3.63 V 3.63 V 3.63 V 3.63 V
Minimum supply voltage - 2.97 V 2.97 V 2.97 V 2.97 V
Nominal supply voltage - 3.3 V 3.3 V 3.3 V 3.3 V
surface mount - YES YES YES YES
technology - CMOS CMOS CMOS CMOS
Temperature level - COMMERCIAL INDUSTRIAL COMMERCIAL INDUSTRIAL
Terminal surface - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form - J BEND J BEND GULL WING GULL WING
Terminal pitch - 1.27 mm 1.27 mm 1.27 mm 1.27 mm
Terminal location - QUAD QUAD DUAL DUAL
Maximum time at peak reflow temperature - 30 30 30 30
width - 11.43 mm 11.43 mm 8.74 mm 8.74 mm
uPs/uCs/peripheral integrated circuit type - MICROCONTROLLER MICROCONTROLLER MICROCONTROLLER MICROCONTROLLER
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