W921E400A

Features: Operating Voltage· 2.8 to 5.5V operating voltage for W921E400A EPROM TYPE· 2.4 to 5.5V operating voltage for W921C400 MASK ROM TYPEOperating Frequency· Crystal or RC for main system clock:- Crystal for 400K, 800K, 2M, 3.58M, 4 MHz- RC up to 4 MHzMemory· 4K × 10-bit ROM (super EPROM):· 51...

product image

W921E400A Picture
SeekIC No. : 004545310 Detail

W921E400A: Features: Operating Voltage· 2.8 to 5.5V operating voltage for W921E400A EPROM TYPE· 2.4 to 5.5V operating voltage for W921C400 MASK ROM TYPEOperating Frequency· Crystal or RC for main system clock:...

floor Price/Ceiling Price

Part Number:
W921E400A
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: 2024/3/27

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:

Operating Voltage
· 2.8 to 5.5V operating voltage for W921E400A EPROM TYPE
· 2.4 to 5.5V operating voltage for W921C400 MASK ROM TYPE
Operating Frequency
· Crystal or RC for main system clock:
- Crystal for 400K, 800K, 2M, 3.58M, 4 MHz
- RC up to 4 MHz
Memory
· 4K × 10-bit ROM (super EPROM):
· 512× 4-bit RAM:
- 64 ×4-bit special register
- 16 × 4-bit working register
- 128×4-bit general register
- 304× 4-bit multi-purpose register
Stack
· 8-bit stack pointer
I/O Pins
· 13 bidirectional and individually controllable I/O lines:
- P2 Port: P2.0 to P2.1 large sink current pins and open drain option
- P3 Port: P3.0 to P3.3 multi-function I/O
- P4 Port: P4.2 to P4.3 open drain and pull high resistor option, multi-function I/O
- P5 Port: P5.1 multi-function I/O
- P6 Port: P6.0 to P6.3 open drain and pull high resistor option, multi-function I/O
· 8 bidirectional I/O lines:
- PA Port: PA.0 to PA.3 open drain and pull high resistor option
- PB Port: PB.0 to PB.3 open drain and pull high resistor option



Pinout

  Connection Diagram


Specifications

PARAMETER
SYMBOL
RATING
UNIT
DC Supply Voltage
VDD-VSS
-0.3 to +7.0
V
Input/Output Voltage
VIL
VSS -0.3
V
VIH
VDD +0.3
V
VOL
VSS -0.3
V
VOH
VDD +0.3
V
Power Dissipation
PD
120
mW
Operation Temperature
TOPR
-20 to +70
°C
Storage Temperature
TSTG
-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 W921E400A/W921C400 is a single-chip CMOS 4-bit microcontroller that is a subset of W921E880A/W921C880. It features a 4-bit ALU, three multi-function timers, one channel DTMF generator, a beep tone generator, a serial I/O port and built in four by one channel comparator circuit, thus it can be easily implemented as telephone processor. Using the serial transmit/receive function, the W921E400A/W921C400 series can interface with Winbond LCD driver IC by the serial control circuit. There are also seven interrupt sources and 48-level subroutine nesting for interrupt applications.

The W921E400A/W921C400 have two power reduction modes, hold mode and stop mode, which help to minimize power dissipation. W921E400A/W921C400 are a powerful microcontroller for telephone processor, remote controllers, multiple I/O products, keyboard controllers, speech synthesis LSI controllers, and other products with few components.




Customers Who Bought This Item Also Bought

Margin,quality,low-cost products with low minimum orders. Secure your online payments with SeekIC Buyer Protection.
Audio Products
Batteries, Chargers, Holders
Power Supplies - External/Internal (Off-Board)
Programmers, Development Systems
Isolators
Boxes, Enclosures, Racks
View more