EEWORLDEEWORLDEEWORLD

Part Number

Search

AT87F52

Description
8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQCC44
Categorysemiconductor    The embedded processor and controller   
File Size161KB,22 Pages
ManufacturerAtmel (Microchip)
Download Datasheet Parametric View All

AT87F52 Overview

8-BIT, FLASH, 24 MHz, MICROCONTROLLER, PQCC44

AT87F52 Parametric

Parameter NameAttribute value
Number of functions1
Number of terminals44
Maximum operating temperature70 Cel
Minimum operating temperature0.0 Cel
Maximum supply/operating voltage6 V
Minimum supply/operating voltage4 V
Rated supply voltage5 V
External data bus width8
Number of input and output buses32
Line speed24 MHz
Processing package descriptionPlastic, LCC-44
stateDISCONTINUED
CraftsmanshipCMOS
packaging shapeSQUARE
Package SizeChipCARRIER
surface mountYes
Terminal formJ BEND
Terminal spacing1.27 mm
terminal coatingtin lead
Terminal locationFour
Packaging MaterialsPlastic/Epoxy
Temperature levelCOMMERCIAL
Address bus width16
Number of digits8
Maximum FCLK clock frequency24 MHz
Microprocessor typeMicrocontroller
ROM programmingFLASH
Features
Compatible with MCS-51™ Products
8K Bytes of User Programmable QuickFlash™ Memory
Fully Static Operation: 0 Hz to 24 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
Programmable Serial Channel
Low Power Idle and Power Down Modes
Description
The AT87F52 is a low-power, high-performance CMOS 8-bit microcomputer with 8K
bytes of QuickFlash programmable read only memory. The device is manufactured
using Atmel’s high density nonvolatile memory technology and is compatible with the
industry standard 80C51 and 80C52 instruction set and pinout. The on-chip Quick-
Flash allows the program memory to be user programmed by a conventional nonvola-
tile memory programmer. By combining a versatile 8-bit CPU with QuickFlash on a
monolithic chip, the Atmel AT87F52 is a powerful microcomputer which provides a
highly flexible and cost effective solution to many embedded control applications.
8-Bit
Microcontroller
with 8K Bytes
QuickFlash
AT87F52
(continued)
Pin Configurations
(T2) P1.0
(T2 EX) P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
(RXD) P3.0
(TXD) P3.1
(INT0) P3.2
(INT1) P3.3
(T0) P3.4
(T1) P3.5
(WR) P3.6
(RD) P3.7
X TA L 2
X TA L 1
GND
PDIP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VCC
P0.0 (AD0)
P0.1 (AD1)
P0.2 (AD2)
P0.3 (AD3)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
P2.4 (A12)
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
TQFP
(T2 EX)
(T2)
(AD0)
(AD1)
(AD2)
(AD3)
44 42 40
38
36 34
43 41 39
37
35
P1.5
P1.6
P1.7
RST
P3.0
NC
P3.1
P3.2
P3.3
P3.4
P3.5
P1.4
P1.3
P1.2
P1.1
P1.0
NC
VCC
P0.0
P0.1
P0.2
P0.3
INDEX
CORNER
(RXD)
(TXD)
(INT0)
(INT1)
(T0)
(T1)
1
2
3
4
5
6
7
8
9
10
11
13 15 17 19 21
12 14 16 18 20 22
33
32
31
30
29
28
27
26
25
24
23
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
NC
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
PLCC
(T2 EX)
(T2)
(AD0)
(AD1)
(AD2)
(AD3)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA/VPP
NC
ALE/PROG
PSEN
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
(WR) P3.6
(RD) P3.7
X TA L 2
X TA L 1
GND
GND
(A8) P2.0
(A9) P2.1
(A10) P2.2
(A11) P2.3
(A12) P2.4
(RXD)
(TXD)
(INT0)
(INT1)
(T0)
(T1)
P1.5
P1.6
P1.7
RST
P3.0
NC
P3.1
P3.2
P3.3
P3.4
P3.5
6
4
2
44 42 40
1
5
3
4 3 4 13 9
7
8
38
9
37
10
36
11
35
12
34
13
33
14
32
15
31
16
30
1 7 1 9 2 1 2 3 2 5 2 72 9
18 20 22 24 26 28
(WR) P3.6
(RD) P3.7
X TA L 2
X TA L 1
GND
NC
(A8) P2.0
(A9) P2.1
(A10) P2.2
(A11) P2.3
(A12) P2.4
P1.4
P1.3
P1.2
P1.1
P1.0
NC
VCC
P0.0
P0.1
P0.2
P0.3
INDEX
CORNER
Rev. 1011A–02/98
1
Can any hero help me see what the problem is?
Could you please help me find out what is wrong with this interrupt function?#includevoid main(void){WDTCTL=WDTPW+WDTTMSEL; //Watchdog is set to timer modeIE1 |=WDTIE;P1DIR |=BIT0; //P1.0 is output_EI...
trueve Microcontroller MCU
Ended-- Live [Microchip Embedded Security Solutions | Trust Your Firmware: Secure Boot Application Processors]
Secure boot protects against rootkit and bootkit attacks on the pre-boot firmware environment. This webinar will explore how to protect systems booting from external SPI flash to extend the root of tr...
EEWORLD社区 Industrial Control Electronics
When burning WINCE with DWN, BIN image invaildate appears! !
As the title says, when I use DWN to burn my own kernel, it prompts that the burned image is wrong. The development board I use is 2440, 7 inches. The FLASH is SST39VF1601. There are NK_A70_128M.bin a...
fanyang1968 Embedded System
I’ll also show off my gift~it’s very exquisite!
First, here is the picture. This gift may not be very valuable. The price on JD.com is 23 yuan ([url=http://item.jd.com/133867.html]http://item.jd.com/133867.html[/url]), but it is an indispensable to...
maylove Talking
C language four books and five classics-how many have you read?
[p=26, null, left][color=#333333][font=Arial][size=4] Let's talk about books on C language. What, C language? Some readers may be surprised. That's right, the protagonist this time is C language, whic...
maaofei Download Centre
PCB design copper platinum thickness, line width and current relationship table
[table=98%] [tr][td][p=26, null, left][font=宋体][size=5][color=#3e3e3e]The calculation of PCB current carrying capacity has always lacked authoritative technical methods and formulas. Experienced CAD e...
lclhitwh Analogue and Mixed Signal

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 1223  2791  2160  2348  297  25  57  44  48  6 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号