MC9328MX21 Datasheet, PDF (17/106 Pages) Motorola, Inc – i.MX family of microprocessors

Specifications
3.4 AC Electrical Characteristics
The AC characteristics consist of output delays, input setup and hold times, and signal skew times. All
signals are specified relative to an appropriate edge of other signals. All timing specifications are specified
at a system operating frequency from 0 MHz to 133 MHz (core operating frequency 266 MHz) with an
operating supply voltage from V_{DD min} to V_{DD max} under an operating temperature from T_L to T_H. All
timing is measured at 30 pF loading.
Table 6. Tri-State Signal Timing
Pin
Parameter
Minimum Maximum Unit
TRISTATE Time from TRISTATE activate until I/O becomes Hi-Z
–
20.8
ns
Table 7. 32k/26M Oscillator Signal Timing
Parameter
Minimum
RMS
EXTAL32k input jitter (peak to peak) for both System PLL and MCUPLL
–
5
EXTAL32k input jitter (peak to peak) for MCUPLL only
–
5
EXTAL32k startup time
800
–
Maximum Unit
20
ns
100
ns
–
ms
Table 8. CLKO Rise/Fall Time (at 30pF Loaded)
Best Case Typical Worst Case Units
Rise Time
0.80
1.00
1.40
ns
Fall Time
0.74
1.08
1.67
ns
MC9328MX21 Product Preview, Rev. 1.1
Freescale Semiconductor
17