AT87C51RD2-RDTUM Atmel, AT87C51RD2-RDTUM Datasheet - Page 7

• Manufacturer Part Number: AT87C51RD2-RDTUM
• Description: IC 8051 MCU 32K OTP 40MHZ 64VQFP
• Manufacturer: Atmel
• Series: 87Cr

Specifications of AT87C51RD2-RDTUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40/20MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

4188F–8051–01/08
P1.1/T2EX
P1.1/T2EX
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
NIC: No InternalConnection
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
P1.0/T2
P1.0/T2
P5.5
P5.6
P5.7
VCC
P4.0
P1.2
P1.3
P4.1
P1.4
P4.2
VCC
P5.5
P5.6
P5.7
VSS
P4.0
P1.2
P1.3
P4.1
P1.4
NIC
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27 28
9
8
10
12
13
14
15
16
1
2
3
4
5
6
7
8
9
11
64
17
29 30 31 32 33 34 35
7
63
18 19 20 21 22 23 24 25
6
62
61
5
60
VQFP64 1.4
4
59
PLCC 68
3
58
57
2
56
1 68 67 66 65 64 63
55
26
36 37 38 39 40 41
54
27 28 29 30 31 32
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
62 61
42 43
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
P3.6/WR
P2.4/A12
P2.3/A11
P4.7
P2.2/A10
P2.1/A9
P2.0/A8
P4.6
NIC
VSS
P4.5
XTAL2
P3.7/RD
P4.4
P4.3
XTAL1
P5.0
P2.4/A12
P2.3/A11
P4.7
P2.2/A10
P2.1/A9
P2.0/A8
P4.6
NIC
VSS
P4.5
XTAL1
XTAL2
P3.7/RD
P4.4
P3.6/WR
P4.3
AT/TS8xC51Rx2
7