TMS320 datasheet(33/69 Pages) TI

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TMS320E25

SPRS010B — MAY 1987 — REVISED NOVEMBER 1990

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77001

EPROM PROGRAMMING

absolute maximum ratings over specified temperature range (unless otherwise noted)†

Supply voltage range, VPP‡

– 0.6 V to 15 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input voltage range on pins 24 and 25

– 0.3 V to 15 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

† Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only, and

functional operation of the device at these or any other conditions beyond those indicated in the “Recommended Operating Conditions” section of

this specification is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

‡ All voltage values are with respect to GND.

recommended operating conditions

MIN

NOM

MAX

UNIT

VCC

Programming mode supply voltage (see Note 13)

VCC

Read mode supply voltage

4.75

5.25

VPP

Programming mode supply voltage

12.5

VPP

Read mode supply voltage (see Note 12)

VCC

NOTES: 12. VPP can be connected to VCC directly (except in the program mode). VCC supply current in this case would be ICC + IPP. During

programming, VPP must be maintained at 12.5 V (± 0.25 V).

13. VCC must be applied before or at the same time as VPP and removed after or at the same time as VPP. This device must not be

inserted into or removed from the board when VPP or VCC is applied.

electrical characteristics over specified temperature range (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP§

MAX

UNIT

IPP1

VPP supply current

VPP = VCC = 5.25 V

100

µA

IPP2

VPP supply current (during program pulse)

VPP = 13 V

§ All typical values for ICC are at VCC = 5 V, TA = 25°C.

recommended timing requirements for programming, TA = 25°C, VCC = 6 V, VPP = 12.5 V

(see Notes 14 and 15)

MIN

NOM

MAX

UNIT

tw(IPGM)

Initial program pulse duration

0.95

1.05

tw(FPGM)

Final pulse duration

2.85

78.75

tsu(A)

Address setup time

µs

tsu(E)

E setup time

µs

tsu(G)

G setup time

µs

tdis(G)

Output disable time from G

130¶

ten(G)

Output enable time from G

150¶

tsu(D)

Data setup time

µs

tsu(VPP)

VPP setup time

µs

tsu(VCC)

VCC setup time

µs

th(A)

Address hold time

µs

th(D)

Data hold time

µs

¶ Value derived from characterization data and not tested.

NOTES: 14. For all switching characteristics and timing measurements, input pulse levels are 0.4 V to 2.4 V and VPP = 12.5 V ± 0.5 V during

programming.

15. Common test conditions apply for tdis(G) except during programming.

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