MPC8347ECVVAGDB 参数 Datasheet PDF下载

IPIC

16 IPIC

This section describes the DC and AC electrical specifications for the external interrupt pins.

16.1

IPIC DC Electrical Characteristics

Table 51. IPIC DC Electrical Characteristics

1

Parameter

Symbol

V

IH

V

IL

I

IN

V

OL

V

OL

Condition

—

—

—

I

OL

= 8.0 mA

I

OL

= 3.2 mA

Min

2.0

–0.3

—

—

—

Max

OV

DD

+ 0.3

0.8

±5

0.5

0.4

Unit

V

V

μA

V

V

Notes

—

—

—

2

2

provides the DC electrical characteristics for the external interrupt pins.

Input high voltage

Input low voltage

Input current

Output low voltage

Output low voltage

Notes:

1. This table applies for pins IRQ[0:7], IRQ_OUT, and MCP_OUT.

2. IRQ_OUT and MCP_OUT are open-drain pins; thus V

OH

is not relevant for those pins.

16.2

IPIC AC Timing Specifications

Table 52. IPIC Input AC Timing Specifications

1

Parameter

Symbol

2

t

PICWID

Min

20

Unit

ns

provides the IPIC input and output AC timing specifications.

IPIC inputs—minimum pulse width

Notes:

1. Input specifications are measured at the 50 percent level of the IPIC input signals. Timings are measured at the pin.

2. IPIC inputs and outputs are asynchronous to any visible clock. IPIC outputs should be synchronized before use by external

synchronous logic. IPIC inputs must be valid for at least t

PICWID

ns to ensure proper operation in edge triggered mode.

17 SPI

This section describes the SPI DC and AC electrical specifications.

17.1

SPI DC Electrical Characteristics

Table 53. SPI DC Electrical Characteristics

Parameter

Symbol

V

IH

V

IL

Condition

—

—

Min

2.0

–0.3

Max

OV

DD

+ 0.3

0.8

Unit

V

V

provides the SPI DC electrical characteristics.

Input high voltage

Input low voltage

MPC8347EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 12

52

Freescale Semiconductor