P89CV51RD2FBC,557 NXP Semiconductors, P89CV51RD2FBC,557 Datasheet - Page 8

• Manufacturer Part Number: P89CV51RD2FBC,557
• Description: IC 80C51 MCU FLASH 64K 44-TQFP
• Manufacturer: NXP Semiconductors
• Series: 89Cr

Specifications of P89CV51RD2FBC,557

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Processor Series: P89CV5x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI, UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• Cpu Family: 89C
• Device Core: 80C51
• Device Core Size: 8b
• Frequency (max): 40MHz
• Total Internal Ram Size: 1KB
• # I/os (max): 32
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: TQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: 568-4257; 935284103557; P89CV51RD2FBC

NXP Semiconductors
Table 3.
[1]
[2]
P89CV51RB2_RC2_RD2_3
Product data sheet
Symbol
RST
EA
ALE
XTAL1
XTAL2
V
V
DD
SS
ALE loading issue: When ALE pin experiences higher loading (> 30 pF) during the reset, the microcontroller may accidentally enter into
modes other than normal working mode. The solution is to add a pull-up resistor from 3 k to 50 k between e.g., ALE pin and V
For 6-clock mode, ALE is emitted at
P89CV51RB2/RC2/RD2 Pin description
Pin
PLCC44
10
35
33
21
20
44
22
TQFP44
4
29
27
15
14
38
16
1
3
Type
I
I
I/O
I
O
supply
supply
of crystal frequency.
Description
Reset: While the oscillator is running, a HIGH logic state on this pin for two
machine cycles will reset the device.
External Access Enable: EA must be connected to V
the device to fetch code from the external program memory. EA must be
strapped to V
Address Latch Enable: ALE is the output signal for latching the low byte of
the address during an access to external memory. Normally the ALE
emitted at a constant rate of
external timing and clocking. One ALE pulse is skipped during each access
to external data memory. However, if bit AO is set to 1, ALE is disabled.
Crystal 1: Input to the inverting oscillator amplifier and input to the internal
clock generator circuits.
Crystal 2: Output from the inverting oscillator amplifier.
Power supply
Ground
Rev. 03 — 25 August 2009
…continued
DD
for internal program execution.
P89CV51RB2/RC2/RD2
1
6
the crystal frequency
80C51 with 1 kB RAM, SPI
[2]
SS
and can be used for
© NXP B.V. 2009. All rights reserved.
in order to enable
[1]
8 of 76
is
DD
.