MSP430P325A Datasheet, PDF (16/35 Pages) Texas Instruments – MIXED SIGNAL MICROCONTROLLER

MSP430C32x, MSP430P325A
MIXED SIGNAL MICROCONTROLLER
SLAS219B − MARCH 1999 − REVISED MARCH 2000
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted) (continued)
input frequency − Port 0: P0.1; Timer/Port: CIN, TP0.5
PARAMETER
TEST CONDITIONS
f_(IN)
t_(H) or t_(L)
Input frequency
High level or low level time
P0.x, CIN, TP.5 3 V
5V
MIN TYP MAX
DC
f_(system)
300
125
UNIT
MHz
ns
ns
output frequency
PARAMETER
f_XBUF
t_Xdc
Duty cycle of O/P frequency
TEST CONDITIONS
XBUF,
XBUF, C_L = 20 pF,
V_CC = 3 V/5 V
C_L = 20 pF
f_MCLK = 1.1 MHz
f_XBUF = f_ACLK
f_XBUF = f_ACLK/n
MIN
40%
35%
TYP
50%
MAX
f_(system)
60%
65%
UNIT
MHz
external interrupt timing
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
t_(int)
Port P0: External trigger signal for the
interrupt flag (see Notes 13 and 14)
1.5
cycle
NOTES: 13. The external signal sets the interrupt flag every time t_(int) is met. It may be set even with trigger signals shorter than t_(int). The
conditions to set the flag must be met independently of this timing constraint. Input frequency (t_(int)) is defined in MCLK cycles.
14. The external signal needs additionally a timing resulting from the maximum input frequency constraint.
RAM
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNIT
V_RAMh CPU halted (see Note 15)
1.8
V
NOTE 15: This parameter defines the minimum supply voltage when the data in the program memory RAM remains unchanged. No program
execution should take place during this supply voltage condition.
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