Features: 1.1 80C51 Related Features of the 8xC591• Full static 80C51 Central Processing Unit available as OTP, ROM and ROMless• 16 Kbytes internal Program Memory expandable externally to 64 Kbytes• 512 bytes on-chip Data RAM expandable externally to 64 Kbytes• Three 16-bit...
P8xC591: Features: 1.1 80C51 Related Features of the 8xC591• Full static 80C51 Central Processing Unit available as OTP, ROM and ROMless• 16 Kbytes internal Program Memory expandable externally t...
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SYMBOL | PARAMETER | MIN. | MAX. | UNIT |
VDD | Voltage on VDD to VSS and SCL, SDA to VSS | -0.5 | +6.5 | V |
VI | input voltage on any pin with respect to ground (VSS) | -0.5 | VDD +0.5 | V |
I1,IO | Input/output current on any I/O pin | - | 5.0 | mA |
Ptot | total power dissipation | - | 1 | W |
Tstg | storage temperature range | -65 | +150 | °C |
VPP | Voltage on EA/VPP to VSS | -0.5 | +85 | °C |
Tamb | Operating ambient temperature range: P8xC591VFx |
-40 | +13 | V |
The P8xC591 is a single-chip 8-bit-high-performance microcontroller, with on-chip CAN-controller, derived from the 80C51 microcontroller family.
P8xC591 uses the powerful 80C51 instruction set and includes the successful PeliCAN functionality of the SJA1000 CAN controller from Philips Semiconductors.
The fully static core provides extended power save provisions of P8xC591 as the oscillator can be stopped and easily restarted without loss of data. The improved internal clock prescaler of 1:1 achieves a 500 ns instruction cycle time at 12 MHz external clock rate.
Figure 1 shows a Block Diagram of the P8xC591. The microcontroller is manufactured in an advanced CMOS process, and is designed for use in automotive and general industrial applications. In addition to the 80C51 standard features, the device provides a number of dedicated hardware functions for these applications. Two versions of the P8xC591 will be offered:
• P83C591 (with ROM)
• P87C591 (with OTP)
Hereafter these versions will be referred to as P8xC591. The temperature range includes (max. fCLK = 12 MHz):
• -40 to +85 °C version, for general applications
The P8xC591 combines the functions of the P87C554 (microcontroller) and the SJA1000 (stand-alone CAN-controller) with the following enhanced features:
• Enhanced CAN receive interrupt (level sensitive)
• Extended acceptance filter
• Acceptance filter changeable "on the fly".
The main differences between P8xC591 and P87C554 are:
• CAN-controller on chip
• 6-input ADC
• Low active Reset
• 44 leads.