W921E400, W921E400A, W921E840A Selling Leads, Datasheet
MFG:WINBOND Package Cooled:3000 D/C:2002
W921E400, W921E400A, W921E840A Datasheet download
Part Number: W921E400
MFG: WINBOND
Package Cooled: 3000
D/C: 2002
W921E400, W921E400A, W921E840A
- Table of contents:
Info of W921E400
Info of W921E400A
Info of W921E840A
Attentive hint
Want to post a buying lead? If you are not a member yet, please select the specific/related part number first and then fill the quantity and your contact details in the "Request for Quotation Form" on the left, and then click "Send RFQ".Your buying lead can then be posted, and the reliable suppliers will quote via our online message system or other channels soon.
Top Sellers:
TOP
About W921E400
PDF/DataSheet Download
Datasheet: W921E400
File Size: 404045 KB
Manufacturer: WINBOND [Winbond]
Download : Click here to Download
About W921E400A
PDF/DataSheet Download
Datasheet: W921E400A
File Size: 404045 KB
Manufacturer: WINBOND [Winbond]
Download : Click here to Download
About W921E840A
PDF/DataSheet Download
Datasheet: W921E840A
File Size: 460386 KB
Manufacturer: WINBOND [Winbond]
Download : Click here to Download
W921E400A General 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. This product is a powerful microcontroller for telephone processor, remote controllers, multiple I/O products, keyboard controllers, speech synthesis LSI controllers, and other products with few components.
W921E400A Maximum Ratings
| 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 |
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 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
· 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
W921E400A Connection Diagram
W921E840A General Description
The W921E840A/W921C840 is single-chip CMOS 4-bit microcontroller that is subset of W921E880A/W921C880. They features four multi-function timers, one channel DTMF generator, an 8-bit D/A converter circuit, ten interrupt sources, 48-level subroutine nesting, and built in four by one channel comparator circuit. Two power down modes, hold and stop mode, reduce power dissipation.
The excellent memory structure, 8K super EPROM in W921E840A and 8K mask ROM in W921C840 for program code and 512 x 4 bit RAM minimize the need for external memory devices.
The W921E840A/W921C840 are powerful microcontroller for wide range consuming applications, requiring few external components, which is especially suited for telecommunication design.
W921E840A Maximum Ratings
| PARAMETER |
SYMBOL |
RATING |
UNIT |
| DC Supply Voltage |
VDD-VSS |
-0.3 to +7.0 |
V |
| Input/Output Voltage |
VIL |
VSS -0.3 |
|
|
VIH |
VDD +0.3 |
V | |
|
VOL |
VSS -0.3 | ||
|
VOH |
VDD +0.3 | ||
| Power Dissipation |
PD |
120 |
mW |
| Operation Temperature |
TOPR |
-20 to +70 |
°C |
| Storage Temperature |
TSTG |
-55 to +150 |
°C |
W921E840A Features
Operating Voltage
· 2.8 to 5.5V operating voltage for W921E840A EPROM Type
· 2.4 to 5.5V operating voltage for W921C840 Mask ROM Type
Operating Frequency
· Crystal or RC for main system clock
- Crystal for 400 K, 800 K, 2 M, 3.58 M, 4 MHz
- RC up to 4 MHz
Memory
· 8K ´ 10-bit ROM (super EPROM)
· 512 ´ 4-bit RAM
- 64 ´ 4-bit special registers
- 16 ´ 4-bit working registers
- 128 ´ 4-bit general registers
- 304 ´ 4-bit multi-purpose registers
Stack
· 8-bit stack pointer
I/O Pins
· 20 bidirectional and individually controllable I/O lines
- P2 Port: P2.0 to P2.3 large sink current pins and open drain option
- P3 Port: P3.0 to P3.3 multi-function I/O
- P4 Port: P4.0 to P4.3 open drain and pull high resistor option, multi-function I/O
- P5 Port: P5.0 to P5.3 multi-function I/O
- P6 Port: P6.0 to P6.3 open drain and pull high resistor option, multi-function I/O
· 14 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
- PC Port: PC.1 to PC.3 open drain and pull high resistor option
- PD Port: PD.0 to PD.1 open drain and pull high resistor option
Serial I/O Interface
· Clock synchronous multi-nibbles serial transmitter/receiver interface
DTMF Generator
· One channel DTMF generator
Beep Tone Generator
· One channel beep tone generator
8-bit D/A Converter
· One channel 8-bit D/A converter
Voltage Comparator
· Multiplexed four channel voltage comparator
Timer/Counter
· Timer 0: 2 to 19 order divider
Auto-reload timer
Watch-dog timer
· Timer 1: 2 to 19 order divider
Auto-reload timer
Arbitrary waveform generator
External event counter
· Timer 2: 2 to 19 order divider
Auto-reload timer
Arbitrary waveform generator
Period/pulse width measurement function
· Timer 3: 2 to 19 order divider
Auto-reload timer
Interrupt
· Four external sources: INT0 (P4.3), P4 Port (P4.0 to P4.2)
· Six internal sources: Timer 0, Timer 1, Timer 2, Timer 3, Comparator, Serial Port
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
· 2.8 to 5.5V operating voltage for W921E840A EPROM Type
· 2.4 to 5.5V operating voltage for W921C840 Mask ROM Type
Operating Frequency
· Crystal or RC for main system clock
- Crystal for 400 K, 800 K, 2 M, 3.58 M, 4 MHz
- RC up to 4 MHz
Memory
· 8K ´ 10-bit ROM (super EPROM)
· 512 ´ 4-bit RAM
- 64 ´ 4-bit special registers
- 16 ´ 4-bit working registers
- 128 ´ 4-bit general registers
- 304 ´ 4-bit multi-purpose registers
Stack
· 8-bit stack pointer
I/O Pins
· 20 bidirectional and individually controllable I/O lines
- P2 Port: P2.0 to P2.3 large sink current pins and open drain option
- P3 Port: P3.0 to P3.3 multi-function I/O
- P4 Port: P4.0 to P4.3 open drain and pull high resistor option, multi-function I/O
- P5 Port: P5.0 to P5.3 multi-function I/O
- P6 Port: P6.0 to P6.3 open drain and pull high resistor option, multi-function I/O
· 14 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
- PC Port: PC.1 to PC.3 open drain and pull high resistor option
- PD Port: PD.0 to PD.1 open drain and pull high resistor option
Serial I/O Interface
· Clock synchronous multi-nibbles serial transmitter/receiver interface
DTMF Generator
· One channel DTMF generator
Beep Tone Generator
· One channel beep tone generator
8-bit D/A Converter
· One channel 8-bit D/A converter
Voltage Comparator
· Multiplexed four channel voltage comparator
Timer/Counter
· Timer 0: 2 to 19 order divider
Auto-reload timer
Watch-dog timer
· Timer 1: 2 to 19 order divider
Auto-reload timer
Arbitrary waveform generator
External event counter
· Timer 2: 2 to 19 order divider
Auto-reload timer
Arbitrary waveform generator
Period/pulse width measurement function
· Timer 3: 2 to 19 order divider
Auto-reload timer
Interrupt
· Four external sources: INT0 (P4.3), P4 Port (P4.0 to P4.2)
· Six internal sources: Timer 0, Timer 1, Timer 2, Timer 3, Comparator, Serial Port
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
W921E840A Connection Diagram
MT58L64L18CT-10
Price: 4-6 USD
MT58L64L18CT-10 TQFP100
DL-7140-211M
Price: 5-6.5 USD
DL-7140-211M laser tube
74LVC74APG
Price: 4-5 USD
74LVC74APG - IC FLIP FLOP D-Type POS-EDG DUAL 14TSSOP
CY28346ZI-2
Price: 6.5-8 USD
CYPRESS - Clock Synthesizer with Differential CPU Outputs
PI5V330QEX
Price: 0.284-0.286 USD
PI5V330QEX Pericom Multiplexer Switch ICs
BSM300GA120DN2
Price: 1-2 USD
IGBT power module, Single switch, 1200 V, Collector-emitter voltage, 430A
SVA150XG04TB
Price: 1-2 USD
a-Si TFT-LCD, NEC, 228.096Hmm, 560V
PC354N1
Price: 0.124-0.2 USD
PC354N1T - Mini-flat Package, AC Input Type Photocoupler - Sharp Electrionic Components
RL1210JR-070R22L
Price: 0.177-0.178 USD
RL1210JR51-XX-BL - Thick Film Chip Resistor Low Ohmic - TAITRON Components Incorporated
STPS140A
Price: 0.053-0.055 USD
STPS140A - POWER SCHOTTKY RECTIFIER - STMicroelectronics
STA013
Price: 1.45-1.5 USD
STA013 - MPEG 2.5 LAYER III AUDIO DECODER - STMicroelectronics
SMBJ5347B
Price: 0.073-0.075 USD
SMBJ5347B - 5 Watt Surface Mount Silicon Zener Diodes - Micro Commercial Components
