CY8C3866AXI-040 Cypress Semiconductor Corp, CY8C3866AXI-040 Datasheet - Page 26

• Manufacturer Part Number: CY8C3866AXI-040
• Description: PSOC 3 TQFP
• Manufacturer: Cypress Semiconductor Corp
• Series: PSOC™ 3 CY8C38xxr

Specifications of CY8C3866AXI-040

• Package / Case: *
• Voltage - Supply (vcc/vdd): 1.71 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 67MHz
• Number Of I /o: 62
• Eeprom Size: 2K x 8
• Core Processor: 8051
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Program Memory Size: 64KB (64K x 8)
• Data Converters: A/D 2x20b, D/A 4x8b
• Oscillator Type: Internal
• Peripherals: CapSense, DMA, LCD, POR, PWM, WDT
• Connectivity: CAN, EBI/EMI, I²C, LIN, SPI, UART/USART, USB
• Core Size: 8-Bit
• Processor Series: CY8C38
• Core: 8051
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, SPI, UART, USB
• Maximum Clock Frequency: 67 MHz
• Number Of Programmable I/os: 28 to 72
• Number Of Timers: 4
• Operating Supply Voltage: 0.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Controller Family/series: (8051) PSOC 3
• No. Of I/o's: 62
• Eeprom Memory Size: 2KB
• Ram Memory Size: 8KB
• Cpu Speed: 67MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6. System Integration
6.1 Clocking System
The clocking system generates, divides, and distributes clocks
throughout the PSoC system. For the majority of systems, no
external crystal is required. The IMO and PLL together can
generate up to a 66 MHz clock, accurate to ±1 percent over
voltage and temperature. Additional internal and external clock
sources allow each design to optimize accuracy, power, and
cost. All of the system clock sources can be used to generate
other clock frequencies in the 16-bit clock dividers and UDBs for
anything the user wants, for example a UART baud rate
generator.
Clock generation and distribution is automatically configured
through the PSoC Creator IDE graphical interface. This is based
on the complete system’s requirements. It greatly speeds the
design process. PSoC Creator allows you to build clocking
systems with minimal input. You can specify desired clock
frequencies and accuracies, and the software locates or builds a
clock that meets the required specifications. This is possible
because of the programmability inherent PSoC.
Key features of the clocking system include:
Table 6-1. Oscillator Summary
Document Number: 001-11729 Rev. *R
MHzECO
kHzECO
Source
Doubler
IMO
DSI
PLL
ILO
24 MHz Input dependent
12 MHz Input dependent
32 kHz
3 MHz
4 MHz
0 MHz
1 kHz
Fmin
±1% over voltage and temperature 62 MHz ±7%
Crystal dependent
Input dependent
–50%, +100%
Crystal dependent
Tolerance at Fmin
100 kHz –55%, +100%
25 MHz Crystal dependent
66 MHz Input dependent
67 MHz Input dependent
48 MHz Input dependent
32 kHz
Fmax
Seven general purpose clock sources
IMO has a USB mode that auto locks to the USB bus clock
requiring no external crystal for USB. (USB equipped parts only)
Independently sourced clock in all clock dividers
Eight 16-bit clock dividers for the digital system
Four 16-bit clock dividers for the analog system
Dedicated 16-bit divider for the bus clock
Dedicated 4-bit divider for the CPU clock
Automatic clock configuration in PSoC Creator
Tolerance at Fmax
Crystal dependent
3- to 62-MHz IMO, ±1% at 3 MHz
4- to 25-MHz external crystal oscillator (MHzECO)
Clock doubler provides a doubled clock frequency output for
the USB block, see
DSI signal from an external I/O pin or other logic
24- to 67-MHz fractional PLL sourced from IMO, MHzECO,
or DSI
Clock doubler
1-kHz, 33-kHz, 100-kHz ILO for WDT and sleep timer
32.768-kHz external crystal oscillator (kHzECO) for RTC
PSoC
USB Clock Domain
10 µs max
5 ms typ, max is crystal dependent
Input dependent
250 µs max
1 µs max
15 ms max in lowest power mode
500 ms typ, max is crystal dependent
®
3: CY8C38 Family
Startup Time
on page 28.
Data Sheet
Page 26 of 129
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