TMS320_13 datasheet(59/70 Pages) TI1

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Pin Nomenclature (TMS320E25)

TMS320E25

SPRS010B — MAY 1987 — REVISED NOVEMBER 1990

POST OFFICE BOX 1443

 HOUSTON, TEXAS 77001

Figure 9 shows the wiring conversion to program the TMS320E25 using the 28-pin pinout of the TMS27C64.

The pin nomenclature table provides a description of the TMS27C64 pins. The code to be programmed into the

device should be serial mode. The TMS320E25 uses 13 address lines to address the 4K-word memory in byte

format.

98 7654 32 1 68 67 66 65 64 63 62 61

27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43

VCC

PGM

EPT

A11

A10

TMS320E25

68-Pin (FZ)

EPT

VPP

CLKIN

TMS27C64

SIGNALS

I/O

DEFINITION

A12 (MSB)-A0 (LSB)

CLIN

EPT

GND

PGM

Q8 (MSB)-Q1 (LSB)

VCC

VPP

I/O

On-chip EPROM programming address lines

Clock oscillator input

EPROM chip select

EPROM test mode select

EPROM read/verify select

Ground

EPROM write/program select

Data lines for byte-wide programming of on-chip 8K bytes of EPROM

Reset for initializing the device

5-V power supply

12.5-V power supply

Figure 9. TMS320E25 EPROM Conversion to TMS27C64 EPROM Pinout

TMS320 Datasheet(PDF) 59 Page - Texas Instruments

TMS320 Datasheet(HTML) 59 Page - Texas Instruments

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