Key facts
- Brand
- STMicroelectronics
- Model
- ST7SCR
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-09
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STMicroelectronics ST7SCR1E4/ST7SCR1R4 8-bit MCU Datasheet
This document is a production datasheet for the ST7SCR1E4 and ST7SCR1R4, which are 8-bit low-power microcontrollers designed for full-speed USB applications. These devices feature up to 16 Kbytes of ROM or High Density Flash (HDFlash) program memory and up to 768 bytes of RAM. Key capabilities include a smartcard interface with selectable voltage levels and an internal step-up converter, as well as a USB interface compliant with USB 2.0 specifications.
Read onlineSTMicroelectronics ST7SCR specifications
| Program Memory | Upto 16 Kbytes of ROM or High Density Flash |
|---|---|
| RAM | Up to 768 bytes |
| USB Interface | Full speed compliant with USB 2.0 |
| Clock Generation | 48 MHz USB clock using a 4 MHz crystal |
| Smartcard Voltage | Selectable 1.8V, 3V, and 5V |
| LED Outputs | Upto 4LED outputs |
Source: STMicroelectronics ST7SCR1E4/ST7SCR1R4 8-bit MCU Datasheet
All STMicroelectronics ST7SCR documents by type
Ratings, dimensions and ordering codes, for selection and design work.
How to use the product for one specific task, with worked examples.
Questions answered in these manuals
What is the maximum program memory size?
The device supports up to 16 Kbytes of ROM or High Density Flash program memory.
From: STMicroelectronics ST7SCR1E4/ST7SCR1R4 8-bit MCU Datasheet
Does the MCU support USB 2.0?
Yes, the USB interface is compliant with the USB 2.0 specification.
From: STMicroelectronics ST7SCR1E4/ST7SCR1R4 8-bit MCU Datasheet
What is the maximum size of the message buffer used by the CCID implementation?
The CCID implementation uses a 271-byte buffer for all messages.
How many bytes are allocated for the message header?
The message header is fixed at 10 bytes.