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Employer.
ELECTRICAL SPECIFICATIONS
MAXIMUM RATINGS
Rating Symbol Value
Supply Voltage* VC~ C -0.3 to +7.0 Input Voltage Vin - (~:5 to + 7.0 Operating Temperature Range
Minimum Ambient Temperature T A 0 40-MHz Maximum Ambient T A 70
Temperature
50-MHz Maximum Case T C 80
Temperature
Storage Temperature Range Tstg -55 to 150
*A continuous clock must be supplied to the MC68030 when it is powered
up.
THERMAL CHARACTERISTICS- PGA PACKAGE
Characteristic Symbol Value Rating
Thermal Resistance -- Ceramic °C/W
J~Jnction tO Ambient ejA 30* Junction to Case 0jC 15"
~Estimated
Unit
V
"V
°C
°C
This device contains protective cir- cuitry against damage due to high static voltages or electrical fields; however, it is advised that normal precautions be taken to avoid ap- plication of any voltages higher than maximum-rated voltages to this high-impedance circuit. Reliability of operation is enhanced if unused inputs are tied to in appropriate logic voltage level (e.g., either GND or VCC).
MO,TOROLA
MC68030 ELECTRICAL SPECIFICATIONS
POWER CONSIDERATIONS
The average chip-junction temperature, T j, in °C can be obtained from:
Tj = T A + (PD ° 03A) (1
where:. ..
T A = Ambient Temperature, °C 0jA = Package Thermal Resistance,
Junction-to-Ambient, °C/W
PD = PINT+ PI/O
'PINT = IccxVcc, Watts-- Chip lnternaI Power
PI/O . - Power,Dissipationon Input and Output Pins
-- User Determined -.
For most applications PI/O<PINT and can be neglected. '
The foliowing is an approximate relationship between PD and Tj (if PI/O is
K = PD" (TA + 273°C) + eJA ° PD 2 (3) where K is a constant pertaining to the particular part. K can be determined from equation (3) by measuring PD (at equilibrium) for a known T A. Using this value of K, the values (~f PD and Tj can be obtained by solving'equ"ations
(1) and (2) iteratively for any value of T A.
The total thermal resistance of a package (0jA)can be separated into two components, 0jC and 0CA, representing the barrier to heatflow from the
semiconductor junction to the package (case) surface (eJC) and from the case
to the outside ambient (0CA). These terms are related by the equation:
0jA=0jC+0CA (4)
ejC is device related and cannot be influenced by the user. However, 0CA is
user dependent and can be minimized by such thermal management tech- niques as heat sinks, ambient good thermal management on the part of the user can significantly reduce eCA so that 0jA approximately equals 0jC. Substitution of ejC for 0jA in
equation (1) will result in a lower semiconductor junction temperature.
Values for thermal resistance presented in this document, unless.estimated, were derived using the procedure described in Motorola Reliability Report
7843, "Thermal Resistance Measurement Method for MC68XX Microcom- ponent Devices," and are provided for design purposes only. Thermal meas- urements are complex and dependent on procedure and setup. User derived
values for thermal resistance may differ.
MC68030~ELECTRICAL;SP.ECIFICATIO NS
air
cooling, and thermal convection. Thus,
•MOTOROLA
AC ELECTRICAL SPECIFICATIONS DEFINITIONS •
The AC specifications presented consist of output delays, input setup and
hold times, and signal skew times. All signals are specified relative to an appropriate edge of the MC68030 clock input and, possibly, relative to one or more other signals.
The measurement of the AC specifications is defined by the waveforms in
Figure 1. To test the parameters guaranteed by MQtorola, inputs must be
driven to the voltage levels •specified in~ Figure 1. Outputs of the MC68030 are specifiedwith minimum.and/or maximum limits, as appropriate, and are
measured as shown. Inputs to the MC68030 are specified with minimum and, as appropriate, maximum setup and hold times, and are measured asshown.
Finally, the measurements for signal-to-signal specifications are also shown.
Note that the testing levels used to verify conformance of the MC68030 to the AC specifications:does ~ not affect the guaranteed DC operation of the
device as specified in the DC electrical characteristics.
ME)'~OROEA MC68030!ELECTRICAL SPECIFICATIONS 3
' " ' CLK
"
" DRIVE
TO 2.4 V
D°TPUTS(2):L~ ' " VAL'O " '~2"0V 2.OV .'VA"0'
I 00TP,T° 0.aV~V_/_/-'I~_~V OUTPOTo+,
..... , ........ To 2:iv "TA--Y- 2.0 v VAL, O 28 v-&V77
;RIVE IN 0T 08V
T00,v t._c4._0_, t
. INPUTS(4) CLK "-~2E08; :NApL~DT :.::~ T02.4V
ALL
SIGNALS
(S)
NOTES:
- 1 - This out[)ut timing is applicable to all parameters specified relative to the rising edge of the clock 2"-This output'timing is applicable to all parameiers specified relative to" the fallingecIge ofthe cl()ck " 3 - This input timing is applicable to all parameters specified relative to the rising edge of the Clock
4 - This
input
5 - This timing is applicable to all parameters specified relative to the assertion/negation of another signal
LEGEND:
A - Maximum output delay specification B - Minimum output hold time C - Minimum input setup time specification D - Minimum input hold time specification E - Signal valid to signal valid specification (maximum or minimum) F - Signal valid to signal invalid specification (maximum or minimum)
timing is applicable to all
V
. --~-- 2.0 V
.~- 0.8 V
parameters specified
relative to the
falling
edge of the clock
.
Figure 1. Drive Levels and Test Points for AC Specifications
4 MC68030 ELECTRICAL-SPECIFICATIONS MOTOROLA
DC ELECTRICAL SPECIFICATIONS
(Vcc = 5.0 Vdc_+ 5%; G ND = 0 Vdc; 40 MHz-T A = 0 ° to 70°C, 50 M Hz-TA = 0°C to T C = 80°C)
17' A'--S, D~ Negated to R/W Invalid 18 Clock High to R/~ High 20 Clock High to R/W Low 21 R/W'High to AT 'Asserted 22 R/W Low to D'--S ,~sserted (Write) 23 Clock High to Data-Out Valid 24 Data-Out Valid to Negating
53." Data-Out ~'iold from Clock High 55 RAN Asserted to
Data
Bus
3 -- 3 -- 2 -- 2 -- 2 -- ns
25 -- 20 -- 15 -- 11 -- 11 -- ns
Impedance Chan~je
56 RESE=r Pulse Width
512 -- 512' -- 512 -- 512 -- 512 -- Clks
(Reset In'struction)
57 BERR
58 l° BGACK Negated to Bus Driven
59 l° B'-G Negated to Bus Driven
Negated to
Negated (Rerun)
HALT
0 -- 0 -- 0 -- 0 -- O -- ns
I -- .I --
I -- I -- 1 -- 1 -- I --
1
-- .I -- I -- Clks
Unit
ns
ns
Clks
8' MC68030 EI'ECTRICALSPECIEICATIONS MOTOROLA.
AC ELECTRICAL SPECIFICATIONS (Concluded)
Num. Characteristic
6013 Synchronous Input Valid to 4 -- 2 --
6113 !Clock High to Synchronous 12 -- 8 --
NOTES: *Tcase = 80°C Maximum
1. This number can be reduced to 5 ns if strobes have equal loads.
2. If the asynchronous setup time (#47A) requirements are satisfied, the DSACKx low to data setup time (#31) and
3. This parameter specifies the maximum allowable skew between DSACK0 to DSACK1 asserted or DSACK1 to DSACK0
4. This specification applies to the first (DSACK0 or DSACK1) DSACKx signal asserted. In the absence of DSACKx, BERR
5. DBEN may stay asserted on consecutive write cycles•
6. The minimum values must be met to guarantee proper operation. If this maximum value is exceeded, B'-G may be
7. This specification indicates the minimum high time for ECS and OCS in the event of an internal cache hit followed
8. This__specification guarantees ~)peration with the MC68881/MC68882, which specifies a minimum time for ~ negated
9. This specification allows a system designer to guarantee
10. These specifi(;ations allow system designers to guarantee that an alternate bus master has stopped driving the bus
.11. DS will not be asserted for synchronous write cycles with no wait states~
12. These hold times are specified with respect to strobes (asynchronous) and with respect to the clock (synchronous).
13. Synch?or~ous__ inputs must meet specifications #60 and #61 with stabJe logic levels for
14. This specification allows system des~qners'._.tto qualify the~ signal of an MC68881/MC68882 with AT (allowing 7 ns
Clock High (Setup Time)
Input Invalid (Hold Time)
62 Clock Low to STATUS, 0 25 O 20
REFILL Asserted
63 Clock Low to STATUS, 0 25 0 20
REFILL Negated
DSACKx low to BERR low setup time (#48) can be ignored. The time (#27) for the following clock Cycle, and BERR must only satisfy the late BERR low to clock low setup time (#27A) for the following clock cycle.
asserted specification #47A must be met by DSACK0 or DSACK1. is an asynchronous input using the asynchronous input setup time (#47A).
reasserted.
immediately by another cache hit, a cache miss, or an operand cycle.
• to,AS asserted (specification #13A in the
• interpretation of specifications #9A and #15 would indicate that the MC68030 does not meet the MC68881/MC68882 requirements.
output enable signals generated with DBEN. The timing on DBEN precludes its use for synchronous READ cycles with no wait states.
when the MC68030 regains control of the bus after an arbitration sequence.
The designer is free to use either time. while AS is asserted. These values are specified relative to the high level of the rising clock edge The values originally
published were specified relative to the low level of the rising clock edge. for a gate delay) and still meet the CS to DS setup time requirement (spec 8B) of the MC68881/MC68882.
20 MHz 25 MHz
Min Max Min Max
MC68881/MC68882 User's Manual).
data
33.33 MHz 40 MHz 50 MHz* Min Max Min Max Min Max
2 -- 2 -- 2 -- ns
6 -- 6 -- 6 -- ns
O 15 0 15 0 15 ns
0 15 O 15 0 15 ns
data
must only satisfy the data-in clock low setup
Without this specification, incorrect
hold times on the output side of data buffers that have