TS80C51RA2-VCB Atmel, TS80C51RA2-VCB Datasheet - Page 53

• Manufacturer Part Number: TS80C51RA2-VCB
• Description: IC MCU 8BIT 256BYTE 40MHZ 44PLCC
• Manufacturer: Atmel
• Series: 80Cr

Specifications of TS80C51RA2-VCB

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40/30MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Type: ROMless
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -

8.3. EPROM Programming
8.3.1. Set-up modes
In order to program and verify the EPROM or to read the signature bytes, the TS87C51RB2/RC2/RD2 is placed
in specific set-up modes (See Figure 18.).
Control and program signals must be held at the levels indicated in Table 30.
8.3.2. Definition of terms
Address Lines:
RC, P3.5 (A15) for RD)
Data Lines:
Control Signals:
Program Signals: ALE/PROG, EA/VPP.
Rev. C - 06 March, 2001
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
Mode
P1.0-P1.7, P2.0-P2.5, P3.4, P3.5 respectively for A0-A15 (P2.5 (A13) for RB, P3.4 (A14) for
P0.0-P0.7 for D0-D7
RST, PSEN, P2.6, P2.7, P3.3, P3.6, P3.7.
RST
1
1
1
1
1
1
1
PSEN
Table 30. EPROM Set-Up Modes
0
0
0
0
0
0
0
PROG
ALE/
1
1
EA/VPP
12.75V
12.75V
12.75V
12.75V
12.75V
1
1
P2.6
0
0
0
0
1
1
1
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
P2.7
1
1
1
1
0
TS80C51RA2/RD2
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
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