TS87C58X2-MCA Atmel, TS87C58X2-MCA Datasheet - Page 11
![IC MCU 8BIT 32K OTP 40MHZ 40-DIP](/photos/6/70/67049/453-40-dip_sml.jpg)
TS87C58X2-MCA
Manufacturer Part Number
TS87C58X2-MCA
Description
IC MCU 8BIT 32K OTP 40MHZ 40-DIP
Manufacturer
Atmel
Series
87Cr
Datasheet
1.TS87C54X2-LIC.pdf
(62 pages)
Specifications of TS87C58X2-MCA
Core Processor
8051
Core Size
8-Bit
Speed
40/20MHz
Connectivity
UART/USART
Peripherals
POR, WDT
Number Of I /o
32
Program Memory Size
32KB (32K 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
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TS87C58X2-MCA
Manufacturer:
ST
Quantity:
36 000
Part Number:
TS87C58X2-MCA
Manufacturer:
TEMIC
Quantity:
20 000
7. Dual Data Pointer Register Ddptr
4431E–8051–04/06
7
AUXR1(A2H)
The additional data pointer can be used to speed up code execution and reduce code size in a
number of ways.
The dual DPTR structure is a way by which the chip will specify the address of an external data
memory location. There are two 16-bit DPTR registers that address the external memory, and a
single bit called
DPS = AUXR1/bit0 (See Table 7-1.) that allows the program code to switch between them
(Refer to Figure 7-1).
Figure 7-1.
DPS
0
Use of Dual Pointer
DPH(83H) DPL(82H)
DPTR1
DPTR0
External Data Memory
AT/TS8xC54/8X2
11