TS87C54X2-VCB Atmel, TS87C54X2-VCB Datasheet - Page 38

• Manufacturer Part Number: TS87C54X2-VCB
• Description: IC MCU 8BIT 16K OTP 40MHZ 44PLCC
• Manufacturer: Atmel
• Series: 87Cr

Specifications of TS87C54X2-VCB

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40/30MHz
• Connectivity: UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: OTP
• 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: -
• Data Converters: -

17.2.3
17.3
17.3.1
17.3.2
38
EPROM Programming
AT/TS8xC54/8X2
Signature bytes
Set-up modes
Definition of terms
The TS87C54/58X2 contains 4 factory programmed signatures bytes. To read these bytes, per-
form the process described in section 8.3.
In order to program and verify the EPROM or to read the signature bytes, the TS87C54/58X2 is
placed in specific set-up modes (See Figure 17-1.).
Control and program signals must be held at the levels indicated in Table 17-2.
Address Lines:P1.0-P1.7, P2.0-P2.5, P3.4 respectively for A0-A14 (P2.5 (A13) for
TS87C54X2, P3.4 (A14) for TS87C58X2).
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 17-2.
Read Signature Bytes
Array Address 0-3Fh
Program Encryption
Program Code data
Program Lock bit 1
Program Lock bit 2
Program Lock bit 3
Verify Code data
Mode
EPROM Set-Up Modes
RST
1
1
1
1
1
1
1
PSEN
0
0
0
0
0
0
0
ALE/PR
OG
1
1
EA/VPP
1 2 . 7 5 V
1 2 . 7 5 V
1 2 . 7 5 V
1 2 . 7 5 V
1 2 . 7 5 V
1
1
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
4431E–8051–04/06
1
1
0
0
1
0
1
P3.7
1
1
1
0
1
0
0