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XA-G49 Datasheet, PDF (38/42 Pages) NXP Semiconductors – XA 16-bit microcontroller family 64K FLASH/2K RAM, watchdog, 2 UARTs | |||
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Philips Semiconductors
XA 16-bit microcontroller family
64K Flash/2K RAM, watchdog, 2 UARTs
Preliminary specification
XA-G49
VDDâ0.5
0.45V
0.7VDD
0.2VDDâ0.1
tCHCL
tCLCX
tCHCX
tCLCH
tC
Figure 26. External Clock Drive
SU00842
VDDâ0.5
0.2VDD+0.9
0.45V
0.2VDDâ0.1
NOTE:
AC inputs during testing are driven at VDD â0.5 for a logic â1â and 0.45V for a logic â0â.
Timing measurements are made at the 50% point of transitions.
Figure 27. AC Testing Input/Output
SU00703A
(NC)
CLOCK SIGNAL
VLOAD
VLOAD+0.1V
VLOADâ0.1V
TIMING
REFERENCE
POINTS
VOHâ0.1V
VOL+0.1V
NOTE:
For timing purposes, a port is no longer floating when a 100mV change from load voltage occurs,
and begins to float when a 100mV change from the loaded VOH/VOL level occurs. IOH/IOL ⥠±20mA.
SU00011
Figure 28. Float Waveform
VDD
RST
VDD
EA
XTAL2
XTAL1
VSS
VDD
RST
(NC)
CLOCK SIGNAL
XTAL2
XTAL1
VSS
VDD
VDD
EA
SU00591B
Figure 29. IDD Test Condition, Active Mode
All other pins are disconnected
SU00590B
Figure 30. IDD Test Condition, Idle Mode
All other pins are disconnected
2000 Apr 03
38
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