AT89C5131A-PUTUM Atmel, AT89C5131A-PUTUM Datasheet - Page 42

• Manufacturer Part Number: AT89C5131A-PUTUM
• Description: IC 8051 MCU FLASH 32K USB 32QFN
• Manufacturer: Atmel
• Series: AT89C513xr

Specifications of AT89C5131A-PUTUM

• Core Processor: C52X2
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART, USB
• Peripherals: LED, POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Size: 32KB (32K 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: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Core: 8051
• Processor Series: AT89x
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 48 MHz
• Data Ram Size: 1.25 KB
• Number Of Programmable I/os: 34
• Number Of Timers: 16 bit
• Operating Supply Voltage: 2.7 V to 5.5 V
• Mounting Style: SMD/SMT
• Height: 0.95 mm
• Interface Type: 2-Wire, EUART, SPI, USB
• Length: 7 mm
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Width: 7 mm
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCUAT89STK-10 - KIT EVAL APPL MASS STORAGEAT89STK-05 - KIT STARTER FOR AT89C5131
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

9.5
Figure 9-1.
9.6
42
Flash Memory Status
Memory Organization
0000h
AT89C5130A/31A-M
7FFFh AT89C5131A-M
3FFFh AT89C5130A-M
Flash Memory Possible Contents
Default
Virgin
Table 9-5.
Notes:
AT89C5130A/31A-M parts are delivered with the ISP boot in the Flash memory. After ISP or par-
allel programming, the possible contents of the Flash memory are summarized in
In the AT89C5130A/31A-M, the lowest 16/32K of the 64 Kbyte program memory address space
is filled by internal Flash.
When the EA is pin high, the processor fetches instructions from internal program Flash. Bus
expansion for accessing program memory from 16/32K upward is automatic since external
instruction fetches occur automatically when the program counter exceeds 3FFFh (16K) or
7FFFh (32K). If the EA pin is tied low, all program memory fetches are from external memory. If
all storage is on chip, then byte location 3FFFh (16K) or 7FFFh (32K) should be left vacant to
prevent and undesired pre-fetch from external program memory address 4000h (16K) or 8000h
(32K).
After ISP
Application
1. U: unprogrammed or "one" level.
2. P: programmed or “zero” level.
3. WARNING: Security level 2 and 3 should only be programmed after Flash and code
Security
Level
verification.
Program Lock Bits
1
2
3
Program Lock Bits of the SSB
LB0
U
P
P
Dedicated
ISP
After ISP
Application
Virgin
LB1
U
U
P
or
Protection Description
No program lock features enabled.
ISP programming of the Flash is disabled.
Same as 2, also verify through ISP programming interface is disabled.
After parallel
programming
Application
After parallel
programming
Dedicated
ISP
Application
Virgin
or
After parallel
programming
Application
Virgin
or
Figure
4337K–USB–04/08
9-1: