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W741E260F
W741E260F - Brand New STMicroelectronics IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
GENERAL DESCRIPTION
The W741C20X is a high-performance 4-bit microcontroller (mC) that operates on very low current. The device contains a 4-bit ALU, two 8-bit timers, a divider, a serial port, and five 4-bit I/O ports (including 3 output ports for LED driving). There are also seven interrupt sources and 8-level subroutine nesting for interrupt applications. The W741C20X has two power reduction modes, hold mode and stop mode, which help to minimize power dissipation.
FEATURES
· Operating voltage: 2.2V to 5.5V
· Crystal or RC oscillation circuit can be selected by the code option
- Crystal/Ceramic oscillator: up to 4 MHz
- RC oscillator: up to 4 MHz
· Both in crystal or RC oscillator operation mode, high-frequency (400 KHz to
4 MHz) or low frequency (32.768 KHz) oscillation must be determined by the
code option
· Memory
- 2048 x 16 bit program ROM (including 2K x 4 bit look-up table)
- 128 x 4 bit data RAM (including 16 working registers)
· 21 input/output pins
- Input/output ports: 4 ports/16 pins
- Serial input/output port: 1 port /4 pins (high sink current for LED
driving)
- MFP output pin: 1 pin (MFP)
· Power-down mode
- Hold function: no operation (except for oscillator)
- Stop function: no operation (including oscillator)
· Seven types of interrupts
- Five internal interrupts (Divider 0, Timer 0, Timer 1, and Serial I/O)
- Two external interrupts (Port RC and INT pin)
· MFP output pin
- Output is software selectable as modulating or nonmodulating frequency
- Works as frequency output specified by Timer 1
· Built-in 14-bit clock frequency divider circuit
· Two built-in 8-bit programmable countdown timers
- Timer 0: One of two internal clock frequencies (FOSC/4 or FOSC/1024) can be
selected
- Timer 1: Offers auto-reload function, and one of two internal clock
frequencies (FOSC or FOSC/64) can be selected, or falling edge of pin RC.0 can
be selected (output through MFP pin)
· Built-in 18/14-bit watchdog timer selectable for system reset
· Powerful instruction set: 118 instructions
· 8-level subroutine (include interrupt) nesting
· One serial transmission/receiver port specified by software
· Up to 1 mS instruction cycle (with 4 MHz operating frequency)
· Packaged in 18-pin, 20-pin, 28-pin PDIP and 20-pin, 28-pin SOP
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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