Position: Home  > All Categories> Integrated Circuits (ICs) > W921E880A

W921E880A

Features: Memory· ROM (Super EPROM): 8K× 10 bits· RAM: 1536 ×4 bits- 64 × 4 bit Special registers- 16 ×4 bit Working registers- 128× 4 bit General registers- 304 ×4 bit Multi-purpose registers4 bit serial buffer registers- 512 ×4-bit× 2 banksDual-clock Operation· Crystal or RC for the main system ...

product image

W921E880A Picture
See larger image
SeekIC No. : 004545312 Detail

W921E880A: Features: Memory· ROM (Super EPROM): 8K× 10 bits· RAM: 1536 ×4 bits- 64 × 4 bit Special registers- 16 ×4 bit Working registers- 128× 4 bit General registers- 304 ×4 bit Multi-purpose registers4 bit ...

W921E880A Data Sheet

floor Price/Ceiling Price

Get Latest Price
Part Number:
W921E880A
Supply Ability:
5000

Price Break

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

SeekIC Buyer Protection PLUS - newly updated for 2013!

  • Escrow Protection.
  • Guaranteed refunds.
  • Secure payments.
  • Learn more >>

Month Sales

268 Transactions

Rating

evaluate  (4.8 stars)

Upload time: 2024/11/20

add to my favourite

Payment Methods

All payment methods are secure and covered by SeekIC Buyer Protection PLUS.

Notice: When you place an order, your payment is made to SeekIC and not to your seller. SeekIC only pays the seller after confirming you have received your order. We will also never share your payment details with your seller.
Product Details

Description



Features:

Memory
· ROM (Super EPROM): 8K× 10 bits
· RAM: 1536 ×4 bits
- 64 × 4 bit Special registers
- 16 ×4 bit Working registers
- 128× 4 bit General registers
- 304 ×4 bit Multi-purpose registers4 bit serial buffer registers
- 512 ×4-bit× 2 banks
Dual-clock Operation
· Crystal or RC for the main system clock: RC up to 4 MHz
Crystal for 400 K, 800 K, 2 M, 3.58 M, 4 MHz
· Crystal for subsystem clock: 32.768 KHz
I/O Pins
· 32 bidirectional and individually controllable I/O lines:
- P0 Port: P0.0-P0.3 large drive current Pins
- P1 Port: P1.0-P1.3 large drive current Pins
- P2 Port: P2.0-P2.3 large sink current pins and open drain option
- P3 Port: P3.0-P3.3 multi-function I/O
- P4 Port: P4.0-P4.3 open drain and pull high resistor option, multi-function I/O
- P5 Port: P5.0-P5.3 multi-function I/O
- P6 Port: P6.0-P6.3 open drain and pull high resistor option, multi-function I/O
- P7 Port: P7.0-P7.3 large sink current pins and open drain option
· 32 bidirectional I/O lines:
- P8 Port: P8.0-P8.3 large drive current pins
- P9 Port: P9.0-P9.3 large sink current pins and open drain option
- PA Port: PA.0-PA.3 open drain and pull high resistor option
- PB Port: PB.0-PB.3 open drain and pull high resistor option
- PC Port: PC.1-PC.3 open drain and pull high resistor option
- PD Port: PD.0-PD.3 open drain and pull high resistor option
- PE Port: PE.0-PE.3
- PF Port: PF.0-PF.3
Interrupt
· Four External sources: INT0 ( P4.3 )
P4 Port ( P4.0-P4.2 )
· Six Internal sources: Timer 0
Timer 1
Timer 2
Timer 3
Comparator
Serial Port
Timer/Counter
· Timer 0: 2-19 order divider (double source)
Auto-reload timer
Watch-dog timer
· Timer 1: 2-19 order divider
Auto-reload timer
Arbitrary waveform generator
External event counter
· Timer 2: 2-19 order divider
Auto-reload timer
Arbitrary waveform generator
Period/Pulse width measurement function
· Timer 3: 2-19 order divider
Auto-reload timer
Operating Mode (System Clock)
· Normal mode: System clock operating
· HOLD mode: no operation except for oscillator (System clock stops only)
· STOP mode: no operation including oscillator
DTMF Generator and 8-bit D/A Converter
· One Channel DTMF Generator
· One Channel 8-bit D/A Converter
Voltage Comparator
· Four by one Channel Voltage Comparator
Serial I/O Interface
· Clock Synchronous multi-nibbles Serial Transmitter/Receiver Interface
Stack
· 8-bit Stack Pointer
Address Mode
· ROM:Indirect call addressing mode
Long jump/call addressing mode
· RAM: Direct addressing mode
Indirect addressing mode
Working reg. addressing mode
· Look-up table addressing mode
Instruction Sets
· 117 Instruction sets
Operating Voltage
· 2.8 to 5.5V operating voltage for W921E880A EPROM Type
· 2.4 to 5.5V operating voltage for W921C880 Mask ROM Type
Package Type
· Packaged in 80-pin QFP


Pinout

Connection Diagram


Specifications

PARAMETER
RATING
UNITS
Supply Voltage to Ground Potential
-0.3 to +7.0
V
Applied input/output Voltage
-0.3 to +7.0
V
Power Dissipation
120
mA
Ambient Operating Temperature
0 to +70
°C
Storage Temperature
-55 to 150
°C
Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device.


Description

The W921E880A/W921C880 are 4-bit micro-processor fabricated by CMOS process. With a single channel DTMF generator, an 8-bit D/A converter circuit, a built in four by one channel comparator circuit and four multi-function timers. The excellent memory structure, 8K super EPROM in W921E880A and 8K mask ROM in W921C880 for program code and 1536 x 4 bit RAM minimize the need for external memory devices. The W921E880A/W921C880 provides good solution for consumming application, especially for telecommunication design with few external components.

Using the serial transmit/receive function, the W921E880A/W921C880 can interface with the Winbond LCD driver IC using the serial control circuit.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
You may also be interested in :
Undefined Category
VI-B63-IU
X27 589
Capacitors
GRM188R71H103KA01D
GRM21BR71H104KA01L
Fans, Thermal Management
3610ML-05W-B49
1608KL-05W-B39
Motors, Solenoids, Driver Boards/Modules
IHSS57-36-20
ASD-B2-1521-B
Audio Products
HUC1002
WM-64CT
Batteries, Chargers, Holders
ICR18650-28A
ICR18650-26F/h
View more