TMS320E25
SPRS010B— MAY 1987— REVISED NOVEMBER 1990
POST OFFICE BOX 1443 •HOUSTON, TEXAS 77001 33
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) 6 V
VCC Read mode supply voltage 4.75 5 5.25 V
VPP Programming mode supply voltage 12 12.5 13 V
VPP Read mode supply voltage (see Note 12) VCC V
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 30 50 mA
§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 1.05 ms
tw(FPGM) Final pulse duration 2.85 78.75 ms
tsu(A) Address setup time 2µs
tsu(E) E setup time 2µs
tsu(G) G setup time 2µs
tdis(G) Output disable time from G 0 130¶ ns
ten(G) Output enable time from G 150¶ ns
tsu(D) Data setup time 2µs
tsu(VPP) VPP setup time 2µs
tsu(VCC) VCC setup time 2µs
th(A) Address hold time 0µs
th(D) Data hold time 2µs
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.
ADVANCE INFORMATION