MSP430C32x, MSP430P325A

MIXED SIGNAL MICROCONTROLLER

SLAS219B – MARCH 1999 – REVISED MARCH 2000

21

POST OFFICE BOX 655303

electrical characteristics over recommended operating free-air temperature range (unless

otherwise noted) (continued)

JTAG

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

f(TCK)

TCK frequency

VCC = 3 V

DC

5

MHz

f(TCK)

JTAG/Test

TCK frequency

VCC = 5 V

DC

10

MHz

R(TEST)

JTAG/Test

Pullup resistors on TMS, TCK, TDI

(see Note 20)

VCC = 3 V/ 5 V

25

60

90

k

Ω

Fuse blow voltage, C versions (see Note 22)

VCC = 3 V/ 5 V

5.5

6

V(FB)

JTAG/Fuse (see Note 21)

Fuse blow voltage, E/P versions

(see Note 22)

VCC = 3 V/ 5 V

11

12

V

I(FB)

()

Supply current on TDI to blow fuse

100

mA

t(FB)

Time to blow the fuse

1

ms

V(PP)

Programming voltage, applied to TDI/VPP

12

12.5

13

V

I(PP)

Current from programming voltage source

70

mA

t(pps)

EPROM (E) and OTP(P) –

Programming time, single pulse

5

ms

t(ppf)

()

()

versions only

Programming time, fast algorithm

100

µs

Pn

Number of pulses for successful programming

4

100

µs

Data retention TJ < 55°C

10

year

t(erase)

EPROM (E) versions only

Erase time wave length 2537 Å at 15 Ws/cm2

(UV lamp of 12 mW/ cm2)

30

min

()

y

Write/Erase cycles

1000

cycles

NOTES: 20. The TMS and TCK pullup resistors are implemented in all C-, P-, and E-versions. The pullup resistor on TDI is implemented in

C-versions only.

21. Once the JTAG fuse is blown, no further access to the MSP430 JTAG/test feature is possible. The JTAG block switches to by-pass

mode.

22. The voltage supply to blow the JTAG fuse is applied to TDI/VPP pin when fuse blowing is desired.