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PDF CY7C63221A Data sheet ( Hoja de datos )
| Número de pieza | CY7C63221A | |
| Descripción | enCoRe USB Low-speed USB Peripheral Controller | |
| Fabricantes | Cypress Semiconductor | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CY7C63221A (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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enCoRe™ USB
CY7C63221/31A
1
CY7C63221A/31A
enCoRe™ USB
Low-speed USB Peripheral Controller
Cypress Semiconductor Corporation • 3901 North First Street • San Jose, CA 95134 • 408-943-2600
Document #: 38-08028 Rev. *A
Revised October 21, 2002
1 page  
FOR
FOR
enCoRe™ USB
CY7C63221/31A
1.0 Features
• enCoRe™ USB - enhanced Component Reduction
— Internal oscillator eliminates the need for an external crystal or resonator
— Interface can auto-configure to operate as PS/2 or USB without the need for external components to switch between
modes (no GPIO pins needed to manage dual mode capability)
— Internal 3.3V regulator for USB pull-up resistor
— Configurable GPIO for real-world interface without external components
• Flexible, cost-effective solution for applications that combine PS/2 and low-speed USB, such as mice, gamepads,
joysticks, and many others
• USB Specification Compliance
— Conforms to USB Specification, Version 2.0
— Conforms to USB HID Specification, Version 1.1
— Supports 1 low-speed USB device address
— Supports 1 control endpoint and 1 data endpoint
— Integrated USB transceiver
— 3.3V regulated output for USB pull-up resistor
• 8-bit RISC microcontroller
— Harvard architecture
— 6-MHz external ceramic resonator or internal clock mode
— 12-MHz internal CPU clock
— Internal memory
— 96 bytes of RAM
— 3 Kbytes of EPROM
— Interface can auto-configure to operate as PS/2 or USB
— No external components for switching between PS/2 and USB modes
• I/O ports
— Up to 10 versatile General Purpose I/O (GPIO) pins, individually configurable
— High current drive on any GPIO pin: 50 mA/pin current sink
— Each GPIO pin supports high-impedance inputs, internal pull-ups, open drain outputs, or traditional CMOS outputs
— Maskable interrupts on all I/O pins
— XTALIN, XTALOUT and VREG can be configured as additional input pins
• Internal low-power wake-up timer during suspend mode
— Periodic wake-up with no external components
• Optional 6-MHz internal oscillator mode
— Allows fast start-up from suspend mode
• Watchdog timer (WDT)
• Low-voltage Reset at 3.75V
• Internal brown-out reset for suspend mode
• Improved output drivers to reduce EMI
• Operating voltage from 4.0V to 5.5VDC
• Operating temperature from 0 to 70 degrees Celsius
• CY7C63221A available in DIE form or 16-pin PDIP
• CY7C63231 available in 18-pin SOIC, 18-pin PDIP
• Industry-standard programmer support
Document #: 38-08028 Rev. *A
Page 5 of 49
5 Page 
FOR
FOR
enCoRe™ USB
CY7C63221/31A
8.0 Memory Organization
8.1 Program Memory Organization
After reset
14-bit PC
Address
0x0000 Program execution begins here after a reset.
0x0002 USB Bus Reset interrupt vector
0x0004 128-µs timer interrupt vector
0x0006 1.024-ms timer interrupt vector
0x0008 USB endpoint 0 interrupt vector
0x000A USB endpoint 1 interrupt vector
0x000C Reserved
0x000E Reserved
0x0010 Reserved
0x0012 Reserved
0x0014 GPIO interrupt vector
0x0016 Wake-up interrupt vector
0x0018 Program Memory begins here
0x0BDF 3 KB PROM ends here (3K - 32 bytes). See Note 1 below
Figure 8-1. Program Memory Space with Interrupt Vector Table
Note:
1. The upper 32 bytes of the 3K PROM are reserved. Therefore, user’s program must not over-write this space.
Document #: 38-08028 Rev. *A
Page 11 of 49
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet CY7C63221A.PDF ] | |
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