AT89C5130A-RDTUM Atmel, AT89C5130A-RDTUM Datasheet - Page 50
![IC 8051 MCU FLASH 16K USB 64VQFP](/photos/6/81/68127/313-64-vqfp_sml.jpg)
AT89C5130A-RDTUM
Manufacturer Part Number
AT89C5130A-RDTUM
Description
IC 8051 MCU FLASH 16K USB 64VQFP
Manufacturer
Atmel
Series
AT89C513xr
Datasheet
1.AT89C5130A-PUTUM.pdf
(188 pages)
Specifications of AT89C5130A-RDTUM
Core Processor
C52X2
Core Size
8-Bit
Speed
48MHz
Connectivity
I²C, SPI, UART/USART, USB
Peripherals
LED, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
1.25 KB
Interface Type
2-Wire, EUART, SPI, USB
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
34
Number Of Timers
16 bit
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
AT89STK-05
Minimum Operating Temperature
- 40 C
Package
64VQFP
Device Core
8051
Family Name
89C
Maximum Speed
48 MHz
For Use With
AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
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Manufacturer
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12. On-chip Expanded RAM (ERAM)
Figure 12-1. Internal and External Data Memory Address
50
AT89C5130A/31A-M
0FFh or 3FFh(*)
00
The AT89C5130A/31A-M provides additional Bytes of random access memory (RAM) space for
increased data parameters handling and high level language usage.
AT89C5130A/31A-M devices have expanded RAM in external data space; maximum size and
location are described in Table 12-1.
Table 12-1.
The AT89C5130A/31A-M has on-chip data memory which is mapped into the following four sep-
arate segments.
The lower 128 bytes can be accessed by either direct or indirect addressing. The Upper 128
bytes can be accessed by indirect addressing only. The Upper 128 bytes occupy the same
address space as the SFR. That means they have the same address, but are physically sepa-
rate from SFR space.
When an instruction accesses an internal location above address 7Fh, the CPU knows whether
the access is to the upper 128 bytes of data RAM or to SFR space by the addressing mode used
in the instruction.
1. The Lower 128 bytes of RAM (addresses 00h to 7Fh) are directly and indirectly
2. The Upper 128 bytes of RAM (addresses 80h to FFh) are indirectly addressable only.
3. The Special Function Registers, SFRs, (addresses 80h to FFh) are directly address-
4. The expanded RAM bytes are indirectly accessed by MOVX instructions, and with the
ERAM
addressable.
able only.
EXTRAM bit cleared in the AUXR register (see Table 12-1)
AT89C5130A/31A-M
Part Number
Description of Expanded RAM
0FFh
80h
7Fh
00
indirect accesses
direct or indirect
128 bytes
128 bytes
accesses
Internal
Internal
Upper
Lower
RAM
RAM
ERAM Size
1024
0FFh
80h
direct accesses
Function
Register
Special
00FFh up to 03FFh (*)
(*) Depends on XRS1..0
Start
00h
0FFFFh
0000
Address
External
Memory
Data
3FFh
End
4337K–USB–04/08
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