P89CV51RB2_RC2_RD2

8-bit 80C51 5 V low power 64 kB flash microcontroller with 1 kB RAM, SPI, 6-clock CPU with 6/12-clock peripherals


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Product description

The P89CV51RB2/RC2/RD2 are three types of 80C51 microcontroller with respectively 16 kB/32 kB/64 kB flash and 1 kB of data RAM. These devices are designed to be drop-in and software-compatible replacements for the popular P89C51RB2/RC2/RD2 devices. Both the In-System Programming (ISP) and In-Application Programming (IAP) boot codes are upward compatible.

Additional features of the P89CV51RB2/RC2/RD2 devices compared to the P89C51RB2/RC2/RD2 are the inclusion of an SPI interface, larger RAM size, and the ability to erase code memory in 128-B page blocks.

The IAP capability combined with the 128-B page size allows for efficient use of the code memory for non-volatile data storage.

Features

Principal features

  • Supports 12-clock (default) or 6-clock mode selection via ISP or parallel programmer
  • 6-clock/12-clock mode programmable "on-the-fly" by an SFR bit
  • Peripherals (PCA, timers, UART) may use either 6-clock or 12-clock mode while the CPU is in 6-clock mode
  • 128-B page erase for efficient use of code memory as non-volatile data storage
  • 0 MHz to 40 MHz operating frequency in 12x mode, 20 MHz in 6x mode
  • 16/32/64 kB of on-chip flash user-code memory with ISP and IAP
  • 1 kB RAM
  • SPI (Serial Peripheral Interface) and enhanced UART
  • PCA (Programmable Counter Array) with PWM and capture/compare functions
  • Three 16-bit timers/counters

Additional features

  • Four 8-bit I/O ports
  • WatchDog Timer (WDT)
  • 30 ms page erase, 150 ms block erase
  • PLCC44 and TQFP44 packages
  • Ten interrupt sources with four priority levels
  • Second DPTR register
  • Low EMI mode (ALE inhibit)
  • Power-down mode with external interrupt wake-up
  • Idle mode

Comparison to P89C51RB2/RC2/RD2 devices

  • SPI: The P89CV51RB2/RC2/RD2 devices have an SPI interface that was not present on the P89C51RB2/RC2/RD2 devices.
  • Smaller block size: The page size decreased from 4 kB to 128 B. These smaller pages can be erased and reprogrammed using IAP function calls, which makes practical use of code memory for non-volatile data storage. A page is erased in 30 ms or less. IAP and ISP code both support 128-B page operations. The IAP and ISP code uses multiple page-erase operations to emulate the erasing of larger block sizes (8 kB and 16 kB) to maintain firmware compatibility.
  • Status bit replaces Status byte: Automatic entry into ISP mode following a reset is now controlled by one status bit. Its operation is almost identical to that used by the previous devices, which was based on the zero/non-zero value of the status byte.
  • Faster block erase: The erase time for the entire user-code memory of the P89CV51RB2/RC2/RD2 devices is 150 ms, which is a significant improvement.
  • Larger RAM size: RAM size increased from 512 B to 1 kB.
All information on this product information page is subject to the subsequent disclaimers:

Devices listed on this page should not be used for new designs!

This product has been discontinued.
Click here for discontinuation information.

Show functional diagram

Block diagram: P89CV51RB2FA, P89CV51RB2FBC, P89CV51RC2FA, P89CV51RC2FBC, P89CV51RD2FA, P89CV51RD2FBC
Block diagram: P89CV51RB2FA, P89CV51RB2FBC, P89CV51RC2FA, P89CV51RC2FBC, P89CV51RD2FA, P89CV51RD2FBC

Products / Packages

All type numbers in the table below are discontinued. See the table Discontinuation information at the bottom of this page for more information.

Type numberOrderable part numberOrdering code (12NC)Product statusPackagePackingMarkingECCN
P89CV51RB2FAP89CV51RB2FA,5129352 841 11512Discontinued
Replacement product
SOT187Standard Marking
P89CV51RB2FBCP89CV51RB2FBC,5579352 841 79557Withdrawn
Replacement product
SOT376Standard Marking
P89CV51RC2FAP89CV51RC2FA,5129352 841 08512Discontinued
Replacement product
SOT187Standard Marking
P89CV51RC2FBCP89CV51RC2FBC,5579352 841 04557Discontinued
Replacement product
SOT376Standard Marking
P89CV51RD2FAP89CV51RD2FA,5129352 832 68512Discontinued
Replacement product
SOT187Standard Marking
P89CV51RD2FBCP89CV51RD2FBC,5579352 841 03557Discontinued
Replacement product
SOT376Standard Marking

Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
P89CV51RB2FA93528411151230-Jun-1130-Sep-11See CommentsDN 67A
  • Multi source product
  • Type number fully withdrawn
  • Limited availability (check with your usual sales contact)
Limited Availability. NXP suggests 32-bit ARM Cortex-M0 family for 8-bit replacement.
P89CV51RB2FBC93528417955730-Jun-1130-Sep-11See CommentsDN 67A
  • Multi source product
  • Type number fully withdrawn
  • Limited availability (check with your usual sales contact)
Limited Availability. NXP suggests 32-bit ARM Cortex-M0 family for 8-bit replacement.
P89CV51RC2FA93528410851230-Jun-1231-Dec-12DN 201112005DNFull WithdrawalMultiple Source. Standard End of Life. Replacement Parts is M0 LPC11xx family.
P89CV51RC2FBC93528410455730-Jun-1231-Dec-12DN 201112005DNFull WithdrawalMultiple Source. Standard End of Life. Replacement Parts is M0 LPC11xx family.
P89CV51RD2FA93528326851230-Jun-1231-Dec-12DN 201112005DNFull WithdrawalMultiple Source. Standard End of Life. Replacement Parts is M0 LPC11xx family.
P89CV51RD2FBC93528410355730-Jun-1231-Dec-12DN 201112005DNFull WithdrawalMultiple Source. Standard End of Life. Replacement Parts is M0 LPC11xx family.

Quality, reliability & chemical content

All type numbers in the table below are discontinued. See the table Discontinuation information at the bottom of this page for more information.

Type numberOrderable part numberChemical contentRoHSLeadfree conversion dateRHFIFR (FIT)MTBF (hours)MSLMSL LF
P89CV51RB2FAP89CV51RB2FA,512P89CV51RB2FAAlways Pb-free2.842.5839793281653747E833
P89CV51RB2FBCP89CV51RB2FBC,557Always Pb-free2.842.5839793281653747E822
P89CV51RC2FAP89CV51RC2FA,512P89CV51RC2FAAlways Pb-free2.842.5839793281653747E833
P89CV51RC2FBCP89CV51RC2FBC,557P89CV51RC2FBCAlways Pb-free2.842.5839793281653747E822
P89CV51RD2FAP89CV51RD2FA,512P89CV51RD2FAAlways Pb-free2.842.5839793281653747E833
P89CV51RD2FBCP89CV51RD2FBC,557P89CV51RD2FBCAlways Pb-free2.842.5839793281653747E822
Quality and reliability disclaimer

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Discontinuation information

Type numberOrdering code (12NC)Last-time buy dateLast-time delivery dateReplacement productDN NoticeStatusComments
P89CV51RB2FA93528411151230-Jun-1130-Sep-11See CommentsDN 67A
  • Multi source product
  • Type number fully withdrawn
  • Limited availability (check with your usual sales contact)
Limited Availability. NXP suggests 32-bit ARM Cortex-M0 family for 8-bit replacement.
P89CV51RB2FBC93528417955730-Jun-1130-Sep-11See CommentsDN 67A
  • Multi source product
  • Type number fully withdrawn
  • Limited availability (check with your usual sales contact)
Limited Availability. NXP suggests 32-bit ARM Cortex-M0 family for 8-bit replacement.
P89CV51RC2FA93528410851230-Jun-1231-Dec-12DN 201112005DNFull WithdrawalMultiple Source. Standard End of Life. Replacement Parts is M0 LPC11xx family.
P89CV51RC2FBC93528410455730-Jun-1231-Dec-12DN 201112005DNFull WithdrawalMultiple Source. Standard End of Life. Replacement Parts is M0 LPC11xx family.
P89CV51RD2FA93528326851230-Jun-1231-Dec-12DN 201112005DNFull WithdrawalMultiple Source. Standard End of Life. Replacement Parts is M0 LPC11xx family.
P89CV51RD2FBC93528410355730-Jun-1231-Dec-12DN 201112005DNFull WithdrawalMultiple Source. Standard End of Life. Replacement Parts is M0 LPC11xx family.

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