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W78C54

Features: · DC to 40 MHz extensive operating frequency· 256-byte on-chip scratch pad RAM· 16K-byte on-chip mask ROM· 64K-byte address space for external Program Memory· 64K-byte address space for external Data Memory· Three 16-bit timer/counters· Four 8-bit bit-addressable I/O ports· One extra 4-b...

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SeekIC No. : 004544991 Detail

W78C54: Features: · DC to 40 MHz extensive operating frequency· 256-byte on-chip scratch pad RAM· 16K-byte on-chip mask ROM· 64K-byte address space for external Program Memory· 64K-byte address space for ex...

W78C54 Data Sheet

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Part Number:
W78C54
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

· DC to 40 MHz extensive operating frequency
· 256-byte on-chip scratch pad RAM
· 16K-byte on-chip mask ROM
· 64K-byte address space for external Program Memory
· 64K-byte address space for external Data Memory
· Three 16-bit timer/counters
· Four 8-bit bit-addressable I/O ports
· One extra 4-bit bit-addressable I/O port, additional INT2/ INT3
(Available on 44-pin PLCC/QFP package)
· Eight-source, two priority-level interrupts
· Low EMI emission mode
· Built-in programmable power-saving modes - Idle mode & Power-down mode
· Packages:
- DIP 40: W78C54-16/24/40
- PLCC 44: W78C54P-16/24/40
- QFP 44: W78C54F-16/24/40
- TQFP 44: W78C54M-16/24/40


Pinout

Connection Diagram


Specifications

PARAMETER
SYMBOL
MIN.
MAX.
UNIT
DC Power Supply
VDD-VSS
-0.3
+7.0
V
Input Voltage
VIN
VSS -0.3
VDD +0.3
V
Operating Temperature
TA
0
70
°C
Storage Temperature
TSTG
-55
+150
°C



Description

The W78C54 is a derivative of the W78C52 microcontroller family that provides extended internal ROM. The chip has 16K bytes of mask ROM and 256 bytes of RAM.

This W78C54 provides an enhanced architecture that makes it more powerful and suitable for a variety of applications for general control systems. It provides on-chip 16KB mask ROM to accommodate large program codes, 256-bytes of non-volatile on-chip RAM, four 8-bit I/O ports, one 4-bit I/O port, three 16-bit timer/counters, eight sources with two-level interrupt structures, and on-chip oscillator clock circuits.




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