CP2114

Rev. 1.1

7

Table 5. GPIO Output Specifications

–40 to +85 °C unless otherwise specified.

Parameter

Test Condition

Min

Typ

Max

Unit

GPIO.9 Clock Output

0.985

1.015

Hz

TX Toggle Rate

—

20

—

Hz

RX Toggle Rate

—

20

—

Hz

Table 6. One Time Programming Specifications

Parameter

Test Condition

Min

Typ

Max

Unit

Digital Port I/O Supply Voltage

3.3

V

GND during a programming

operation

5.75

—

V

—

4.7

—

µF

Table 7. System Clock Specifications

Parameter

Test Condition

Min

Typ

Max

Unit

Internal Oscillator

SF = 0 (Register: System_Props, bit: 1)

SF = 1 (Register: System_Props, bit: 1)

—

—

48

49.152

—

—

MHz

MHz

External CMOS clock input

frequency

SF = 0 (Register: System_Props, bit: 1)

SF = 1 (Register: System_Props, bit: 1)

47.880

—

48

49.152

48.120

—

MHz

MHz

1. Depending on the requirements of the external DAC, the system clock frequency will be either 48.0 or 49.152 MHz. See

Section 5.6 for more information.

2. The USB specification requires a clock accuracy of ±0.25%.