AT87C52X2-3CSUV Atmel, AT87C52X2-3CSUV Datasheet - Page 33
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AT87C52X2-3CSUV
Manufacturer Part Number
AT87C52X2-3CSUV
Description
Microcontrollers (MCU) Microcontroller
Manufacturer
Atmel
Datasheet
1.AT87C52X2-3CSUV.pdf
(55 pages)
Specifications of AT87C52X2-3CSUV
Data Bus Width
8 bit
Program Memory Type
EPROM
Program Memory Size
8 KB
Data Ram Size
256 B
Interface Type
UART
Maximum Clock Frequency
30 MHz
Number Of Programmable I/os
32
Number Of Timers
3 bit
Operating Supply Voltage
5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
Through Hole
Package / Case
PDIL-40
Minimum Operating Temperature
0 C
Lead Free Status / Rohs Status
No
Definition of terms
Figure 11. Set-Up Modes Configuration
4184I–8051–02/08
* See Table 31. for proper value on these inputs
PROGRAM SIGNALS*
CONTROL SIGNALS*
4 to 6 MHz
Control and program signals must be held at the levels indicated in Table 35.
Address Lines: P1.0-P1.7, P2.0-P2.4 respectively for A0-A12
Data Lines: P0.0-P0.7 for D0-D7
Control Signals: RST, PSEN, P2.6, P2.7, P3.3, P3.6, P3.7.
Program Signals: ALE/PROG, EA/VPP.
Table 20. EPROM Set-up Modes
Mode
Program Code data
Verify Code data
Program Encryption
Array Address 0-3Fh
Read Signature Bytes
Program Lock bit 1
Program Lock bit 2
Program Lock bit 3
EA/VPP
ALE/PROG
RST
PSEN
P2.6
P2.7
P3.3
P3.6
P3.7
XTAL1
RST
1
1
1
1
1
1
1
PSEN
0
0
0
0
0
0
0
P0.0-P0.7
P1.0-P1.7
P2.0-P2.4
VCC
VSS
PROG
ALE/
1
1
GND
+5V
12.75V
12.75V
12.75V
12.75V
12.75V
VPP
EA/
1
1
D0-D7
A0-A7
A8-A12
P2.6
0
0
0
0
1
1
1
P2.7
1
1
1
1
0
P3.3
1
0
1
0
1
1
1
P3.6
1
1
0
0
1
0
1
P3.7
1
1
1
0
1
0
0
33