ELECTRICAL CHARACTERISTICS
MC68332
A-8
USER’S MANUAL
Notes for Tables A–5 and A–5a:
1. Applies to:
Port E [7:4] — SIZ[1:0], AS, DS
Port F [7:0] — IRQ[7:1], MODCLK
Port QS [7:0] — TXD, PCS[3:1],ÊPCS0/SS, SCK, MOSI, MISO
TPUCH[15:0], T2CLK
BKPT/DSCLK, IFETCH, RESET, RXD, TSTME/TSC
EXTAL (when PLL enabled)
2. Input-Only Pins: EXTAL, TSTME/TSC, BKPT, T2CLK, RXD
Output-Only Pins: CSBOOT, BG/CS, CLKOUT, FREEZE/QUOT, IPIPE
Input/Output Pins:
Group 1:
DATA[15:0], IFETCH, TPUCH[15:0]
Group 2:
Port C [6:0] — ADDR[22:19]/CS[9:6], FC[2:0]/CS[5:3]
Port E [7:0] — SIZ[1:0], AS, DS, AVEC, RMC, DSACK[1:0]
Port F [&:0] — IRQ[7:1], MODCLK
Port QS [7:3] — TXD, PCS[3:1], PCS0/SS
ADDR23/CS10/ECLK, ADDR[18:0], R/W, BERR, BR/CS0, BGACK/CS2
Group 3:
HALT, RESET
Group 4:
MISO, MOSI, SCK
3. Does not apply to HALT and RESET because they are open drain pins. Does not apply to Port QS [7:0] (TXD,
PCS[3:1],ÊPCS0/SS, SCK, MOSI, MISO) in wired-OR mode.
4. Current measured with system clock frequency of 16.78 MHz, all modules active.
5. Use of an active pulldown device is recommended.
6. Total operating current is the sum of the appropriate I
DD
, I
DDSYN
, and I
SB
values. I
DD
values include supply cur-
rents for device modules powered by V
DDE
and V
DDI
pins.
7.
The RAM module will not switch into standby mode as long as V
SB
does not exceed V
DD
by more than 0.5
Volt. The RAM array cannot be accessed while the module is in standby mode.
8. Power dissipation measured at specified system clock frequency, all modules active. Power dissipation can be
calculated using the expression:
P
D
=
Maximum V
DD
(I
DD
+ I
DDSYN
+ I
SB
)
I
DD
includes supply currents for all device modules powered by V
DDE
and V
DDI
pins.
9. This parameter is periodically sampled rather than 100% tested.
10. When V
DD
is transitioning during power-up or power down sequence, and V
SB
is applied, current flows between
the V
STBY
and V
DD
pins, which causes standby current to increase toward the maximum transient condition spec-
ification. System noise on the V
DD
and V
STBY
pins can contribute to this condition.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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