P80C32UBAA

80C51 8-bit microcontroller family 128/256 byte RAM ROMless low voltage (2.7 V-5.5 V), low power, high speed (33 MHz)


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The Philips 80C31/32 is a high-performance static 80C51 design fabricated with Philips high-density CMOS technology with operation from 2.7 V to 5.5 V.

The 80C31/32 ROMless devices contain a 128 ? 8 RAM/256 ? 8 RAM, 32 I/O lines, three 16-bit counter/timers, a six-source, four-priority level nested interrupt structure, a serial I/O port for either multi-processor communications, I/O expansion or full duplex UART, and on-chip oscillator and clock circuits.

In addition, the device is a low power static design which offers a wide range of operating frequencies down to zero. Two software selectable modes of power reduction-idle mode and power-down mode are available. The idle mode freezes the CPU while allowing the RAM, timers, serial port, and interrupt system to continue functioning. The power-down mode saves the RAM contents but freezes the oscillator, causing all other chip functions to be inoperative. Since the design is static, the clock can be stopped without loss of user data and then the execution resumed from the point the clock was stopped.

Features and benefits

  • 8051 Central Processing Unit
    • 128 ? 8 RAM (80C31)
    • 256 ? 8 RAM (80C32)
    • Three 16-bit counter/timers
    • Boolean processor
    • Full static operation
    • Low voltage (2.7 V to 5.5 V@ 16 MHz) operation
  • Memory addressing capability
    • 64k ROM and 64k RAM
  • Power control modes:
    • Clock can be stopped and resumed
    • Idle mode
    • Power-down mode
  • CMOS and TTL compatible
  • TWO speed ranges at VCC = 5 V
    • 0 to 16 MHz
    • 0 to 33 MHz
  • Three package styles
  • Extended temperature ranges
  • Dual Data Pointers
  • 4 level priority interrupt
  • 6 interrupt sources
  • Four 8-bit I/O ports
  • Full-duplex enhanced UART
    • Framing error detection
    • Automatic address recognition
  • Programmable clock out
  • Asynchronous port reset
  • Low EMI (inhibit ALE)
  • Wake-up from Power Down by an external interrupt
All information on this product information page is subject to the subsequent disclaimers:
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Show functional diagram

Block diagram: P80C31SBAA, P80C31SBPN, P80C31SFAA, P80C32SBAA, P80C32SBPN, P80C32UBAA, P80C32UFAA, P87C51SBAA, P87C51SBPN, P87C52SBAA, P87C52SBPN, P87C52SFAA, P87C52UBAA, P87C52UBPN
Block diagram: P80C31SBAA, P80C31SBPN, P80C31SFAA, P80C32SBAA, P80C32SBPN, P80C32UBAA, P80C32UFAA, P87C51SBAA, P87C51SBPN, P87C52SBAA, P87C52SBPN, P87C52SFAA, P87C52UBAA, P87C52UBPN

Parametrics of this product

Type numberPackagefmax
(MHz)		RAM
(B)		I/O
pins		UART
Timers
package reference code@ temperature
range
@ VDD
[min](V)		@ VDD
[max]
(V)		@ product description
P80C32UBAASOT187-2
(PLCC44)		33.0256.032.01.03.0PLCC44B4.55.580C51 8-bit microcontroller family 128/256 byte RAM ROMless low voltage (2.7 V-5.5 V), low power, high speed (33 MHz)

Similar products

Products / Packages

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarking
P80C32UBAAP80C32UBAA,5129352 558 10512Volume productionSOT187-2
(PLCC44) 		Tube Dry PackStandard Marking
P80C32UBAAP80C32UBAA,5189352 558 10518Volume productionSOT187-2
(PLCC44) 		Reel Dry Pack, SMD, 13"Standard Marking

Quality, reliability & chemical content

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
P80C32UBAAP80C32UBAA,512P80C32UBAAweek 45, 20042.842.5839793281653747E833
P80C32UBAAP80C32UBAA,518P80C32UBAAweek 45, 20042.842.5839793281653747E833
Quality and reliability disclaimer

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Documentation for this product

Ordering & availability

Type numberOrdering code(12NC)Orderable part numberRegionDistributorIn stockOrder quantityInventory dateBuy onlineSamples
P80C32UBAA9352 558 10512P80C32UBAA,512NADIGI-KEY CORPORATION1,4605/24/2012Buy onlinenot available
   ASIAAVNET EXPRESS ASIA1,3005/7/2012Buy online 
   NAMOUSER ELECTRONICS1,0095/24/2012Buy online 
   NAMOUSER ELECTRONICS1,0095/24/2012Buy online 
   NAAVNET EXPRESS9985/24/2012Buy online 
   EUARROW EUROPE4885/23/2012Buy online 
   NAARROW ELECTRONICS4705/24/2012Buy online 
   EUAVNET EXPRESS EUROPE3385/24/2012Buy online 
   ASIAELEMENT14 APAC505/24/2012Buy online 
   ASIASACL - Hong Kong/Chinayes130005/01/2012Buy online 
   JAPANCHIP ONE STOPyes05/14/2012Buy online 
P80C32UBAA9352 558 10518P80C32UBAA,518ASIAELEMENT14 APAC505/24/2012Buy onlinenot available
   JAPANCHIP ONE STOPno05/14/2012Buy online 

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