Features: • 13 I/O pins with individual direction control
• High current sink/source for direct LED drive
• Timer0: 8-bit timer/counter with 8-bit programmable prescaler
• Power-on Reset (POR)
• Power-up Timer (PWRT) and Oscillator Start-up Timer (OST)
• Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation
• Programmable code protection
• Power saving SLEEP mode
• Selectable oscillator options
• Serial in-circuit programming (via two pins)
• Four user programmable ID locations
Application• Provides translation of Assembler source code to object code for all Microchip microcontrollers.
• Macro assembly capability.
• Produces all the files (Object, Listing, Symbol, and special) required for symbolic debug with Microchip's emulator systems.
• Supports Hex (default), Decimal and Octal source and listing formats.SpecificationsAmbient Temperature under bias ................................................................................ 40° to +125°C
Storage Temperature.................................................................................................... 65° to +150°C
Voltage on any pin with respect to VSS (except VDD and MCLR)................................... 0.6V to VDD +0.6V
Voltage on VDD with respect to VSS .............................................................................. 0 to +7.5V
Voltage on MCLR with respect to VSS (Note 2)............................................................... 0 to +14V
Total power Dissipation (Note 1) .....................................................................................1.0W
Maximum Current out of VSS pin.......................................................................................300 mA
Maximum Current into VDD pin..........................................................................................250 mA
Input Clamp Current, IIK (VI<0 or VI> VDD) .................................................................... ±20 mA
Output Clamp Current, IOK (V0 <0 or V0>VDD) ................................................................ ±20 mA
Maximum Output Current sunk by any I/O pin ....................................................................25 mA
Maximum Output Current sourced by any I/O pin ...............................................................25 mA
Maximum Current sunk by PORTA and PORTB .....................................................................200 mA
Maximum Current sourced by PORTA and PORTB.................................................................200 mA DescriptionThe PIC16C55X(A) are 18 and 20-Pin EPROM-based members of the versatile PIC16CXX family of low-cost, high-performance, CMOS, fully-static, 8-bit
microcontrollers.
All PICmicro™ microcontrollers employ an advanced RISC architecture. The PIC16C55X(A) have enhanced core features, eight-level deep stack, and multiple internal and external interrupt sources. The separate instruction and data buses of the Harvard architecture of PIC16C55X allow a 14-bit wide instruction word with the separate 8-bit wide data. The two-stage instruction pipeline of PIC16C55X allows all instructions to execute in a single-cycle, except for program branches (which require two cycles). A total of 35 instructions (reduced instruction set) are available. Additionally, a large register set gives some of the architectural innovations used to achieve a very high performance.
PIC16C55X(A) microcontrollers typically achieve a 2:1 code compression and a 4:1 speed improvement over other 8-bit microcontrollers in their class.
The PIC16C554(A) and PIC16C556A have 80 bytes of RAM. The PIC16C558(A) has 128 bytes of RAM. Each device has 13 I/O pins and an 8-bit timer/counter with an 8-bit programmable prescaler.
PIC16C55X(A) devices have special features to reduce external components, thus reducing cost, enhancing system of PIC16C55X reliability and reducing power consumption. There are four oscillator options, of which the single pin RC oscillator provides a low-cost solution, the LP oscillator minimizes power consumption, XT is a standard crystal, and the HS is for High Speed crystals. The SLEEP (power-down) mode offers power saving. The user can wake up the chip from SLEEP through several external and internal interrupts and reset.
A highly reliable Watchdog Timer with PIC16C55X own on-chip RC oscillator provides protection against software lock- up.
A UV-erasable CERDIP-packaged version of PIC16C55X is ideal for code development while the cost-effective One-Time Programmable (OTP) version is suitable for production in any volume.
Table 1-1 shows the features of the PIC16C55X(A) mid-range microcontroller families.
A simplified block diagram of the PIC16C55X(A) is shown in Figure 3-1.
The PIC16C55X(A) series fit perfectly in applications ranging from motor control to low-power remote sensors. The EPROM technology makes customization of application programs (detection levels, pulse generation, timers, etc.) extremely fast and convenient. The small footprint packages make this microcontroller series perfect for all applications with space limitations. Low-cost, low-power, high-performance, ease of use and I/O flexibility make the PIC16C55X(A) very versatile.
PIC16C55X Data Sheet
