SCANSTA101

www.ti.com

SNLS057J – MAY 2002 – REVISED APRIL 2013

AC ELECTRICAL CHARACTERISTICS/OPERATING REQUIREMENTS (continued)

Over recommended operating supply voltage and temperature ranges unless otherwise specified. CL = 50 pF, RL = 500Ω

unless otherwise specified.

Symbol

Parameter

Conditions

# of SCK

Min

Max

Units

(1) (2)

tD3

Propagation Delay

Output data valid to DTACK low, all read

See Figure 13

1

ns

cycles

tpHL1

Propagation Delay

10.5

STB low to INT low, register write (clears

See Figure 12

5 or 6

ns

Interrupt)

tW

Clock Pulse Width, SCK, H or L

3.0

ns

fMAX

Clock Frequency, SCK

66

MHz

tRELEASE

Release Time, RST to STB

2

ns

Symbol

Parameter

Conditions

Min

Max

Units

SERIAL SCAN INTERFACE (SSI)

tD5

Propagation Delay

See Figure 14

11.5

ns

SCK to TCK_SM

tD6

Propagation Delay

See Figure 14

12.0

ns

SCK to TDO_SM

tD7

Propagation Delay

See Figure 14

12.5

ns

SCK to TMS_SM

tD8

Propagation Delay - tpLH

See Figure 14

15.0

ns

SCK to TRIST_SM

tD9

Propagation Delay - tpHL

See Figure 14

12.5

ns

SCK to TRIST_SM

tD10

Propagation Delay

See Figure 14

12.5

ns

SCK to TDO_SM disable

tD11

Propagation Delay

See Figure 14

14.0

ns

SCK to TDO_SM enable

tEN1

Enable Delay

See Figure 14

12.0

ns

OE low to TCK_SM, TDO_SM, TMS_SM, or

TRST0_SM

tDIS1

Disable Delay

See Figure 14

11.0

ns

OE high to TCK_SM, TDO_SM, TMS_SM, or

TRST0_SM

tEN2

Enable Delay

10.0

ns

OE low to TRIST_SM

tDIS2

Disable Delay

11.5

ns

OE high to TRIST_SM

tDIS3

Disable Delay

12.5

ns

RST low to TRST0_SM

tS2

Setup Time

See Figure 14

3.5

ns

SCK to TDI_SM

tH2

Hold Time

See Figure 14

2.0

ns

SCK to TDI_SM

TEST & DEBUG INTERFACE TIMING REQUIREMENTS (SCAN)

tS

Setup Time

2.0

ns

TMS to TCK

tH

Hold Time

1.0

ns

TMS to TCK

tS

Setup Time

1.0

ns

TDI to TCK

tH

Hold Time

2.0

ns

TDI to TCK

tW

Pulse Width

10.0

ns

TCK (H or L)

Copyright © 2002–2013, Texas Instruments Incorporated

Submit Documentation Feedback

7

Product Folder Links: SCANSTA101