DSP56166ROM datasheet(56/63 Pages) MOTOROLA

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PRELIMINARY - 6/15/93

MOTOROLA

DSP56166 Technical Data Sheet

AC Electrical Characteristics — OnCE Timing

VCC = 5.0 Vdc +/- 10%, TJ = -40

° to +125° C, CL = 50 pF + 1 TTL Load).

NOTES:

1. 45%-55% duty cycle

2. Td=DSCK High (183)

Num

Characteristic

60 MHz

Unit

Min

Max

180

DSCK High to DSO Valid

—

27.6

181

DSI Valid to DSCK Low (Setup)

—

182

DSCK Low to DSI Invalid (Hold)

0.9

—

183

DSCK High (See note 1)

2Tc

—

184

DSCK Low (See note 1)

2Tc

—

185

DSCK Cycle Time (See note 1)

4Tc

—

186

CLKO High to OS0-OS1 Valid

14.5

187

CLKO High to OS0-OS1 Invalid

—

188

Last DSCK High to OS0-OS1(See note 2)

Last DSCK High to ACK Active (data)(See note 2)

Last DSCK High to ACK Active (command)(See note 2)

10T+Td+14.5

10T+Td+13.5

21T+Td+13.5

—

189

DSO (ACK) Asserted to OS0-OS1 Three-state

—

TBD

190

DSO (ACK) Asserted to First DSCK High

3Tc

—

191

DSO (ACK) Width Asserted:

a. when entering debug mode

b. when acknowledging command/data transfer

8T+1.1

9T+1.1

8T+4.1

9T+4.1

192

Last DSCK Low of Read Register to First

DSCK High of Next Command

6Tc

—

193

DSCK High to DSO Invalid (See note 2)

10.9

—

194

DR asserted to DSO (ACK) Asserted

11T+19.5

—

DSP56166ROM Datasheet(PDF) 56 Page - Motorola, Inc

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