mc68ec060 Freescale Semiconductor, Inc, mc68ec060 Datasheet - Page 346

• Manufacturer Part Number: mc68ec060
• Description: Mc68060 Superscalar 68k Microprocessor Including The Lc060 And Ec060
• Manufacturer: Freescale Semiconductor, Inc

Electrical and Thermal Characteristics
12.6 OUTPUT AC TIMING SPECIFICATIONS (V
NOTES:
1. Output timing is measured at the pin, assuming a capacitive load of 50 pF. A maximum load of 130 pF may be used,
2. In a mixed supply system where the processor drives chips operating with 5-volt supply, the ÒPad Starts at 5.5 VÓ
3. BCLK is not a pin signal name. It is a virtual bus clock where the BCLK rising edge coincides with that of CLK when
4. When the processor drives these signals from a three-stated condition, use spec 11a or 40a. Use the ÒPad Starts at
5. ÒPad Starts at 5.5 V" does not apply since these signals are always driven.
12-4
Num
11a
40a
11
40
50
12
13
14
18
19
21
38
39
57
58
59
60
61
62
63
however. Characterization indicates that at 130 pF loads, output propagation delays are modified as follows: 50 MHz,
Pad at V
prop delay by 1.3; 66 MHz, pad at 5.5 V, multiply prop delay by 1.4. Exceeding the 130-pF limit on any pin may affect
long-term reliability and Motorola does not guarantee proper operation.
column should be used, as it is possible that a three-state pin is at 5.5 volts when the processor begins to drive it.
For a non three-state pin driven by the processor or a homogeneous 3.3-volt system, the ÒPad Starts at VccÓ column
must be used. This note does not apply to spec numbers 11, 11a, 40, and 40a. Refer to Note 5 for these specs.
CLKEN is asserted. The BCLK falling edge is insignificant. An output timing reference to BCLK means that the spe-
cific output transitions only on rising CLK edges when CLKEN is asserted. A timing reference to CLK means that the
output may transition off the rising CLK edge, regardless of CLKEN state.
V
are defined by spec 11 or 40. The ÒPad Starts at 5.5 VÓ column has no entry for specs 11 and 40, since the processor
only drives up to the V
4
4
5
CC
4
4
Ó column or ÒPad Starts at 5.5 VÓ column as appropriate. Once these signals are driven, subsequent transitions
BCLK to Address CIOUT, LOCK,
LOCKE, R/W, SIZx, TLN, TMx,
TTx, UPAx, BSx Valid (signal pre-
driven)
BCLK to Address CIOUT, LOCK,
LOCKE, R/W, SIZx, TLN, TMx,
TTx, UPAx, BSx Valid (signal from
three-state)
BCLK or CLK to Output Invalid
(Output Hold)
BCLK to TS Valid
BCLK to TIP Valid
BCLK to Data Out Valid
BCLK to Data Out Invalid (Output
Hold)
BCLK to Data-Out High Impedance
BCLK to Address, CIOUT, LOCK,
LOCKE, R/W, SIZx, TS, TLNx,
TMx, TTx, UPAx, BSx High Imped-
ance
CLK to BB, TIP High Impedance
BCLK to BR, BB Valid (Signal Pre-
driven)
BCLK to BB Valid (signal from
three-state)
CLK to IPEND, PSTx, RSTO Valid
BCLK to SAS Valid
BCLK to SAS Invalid (Output Hold)
BCLK to SAS High Impedance
BCLK to TS Invalid (Output Hold)
BCLK to BTT Valid
BCLK to BTT Invalid (Output Hold)
BCLK to BTT High Impedance
CC
, multiply prop delay by 1.4; 50 MHz, Pad at 5.5 V, multiply prop delay by 1.6; 66 MHz, Pad at V
Characteristic
CC
level. BR is never three-stated by the processor, and therefore, spec 40a does not apply.
Min Max Min Max Min Max Min Max Min Max Min Max
at 5.5 V
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
M68060 USERÕS MANUAL
2
2
2
2
2
2
2
2
2
2
2
2
Starts
Pad
15.4
14.4
15.4
13.5
15.4
15.4
15.4
12
12
12
12
12
Ñ
Ñ
Ñ
50 MHz
Ð
Ð
Ð
Ð
Ð
2
at V
Ñ
Ñ
Ñ
Ñ
Ñ
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Starts
Pad
CC
12.6
13.5
12.3
13.5
13.5
12.6
13.5
13.5
13.5
13.5
12
12
12
12
12
Ð
Ð
Ð
Ð
Ð
2
at 5.5 V
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
2
2
2
2
2
2
2
2
2
2
2
2
Starts
Pad
11.8
10.9
11.8
10.4
11.8
11.8
11.8
10
10
10
10
10
Ñ
Ñ
Ñ
66 MHz
Ð
Ð
Ð
Ð
Ð
CC
2
at V
Ñ
Ñ
Ñ
Ñ
Ñ
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
= 3.3 V ± 5%)
Starts
Pad
CC
10.4 1.5 10.5 1.5
10.4 1.5 10.5 1.5
10.4 1.5
10.4 1.5 10.5 1.5
10.4
10.4 1.5 10.5 1.5
10.4 1.5 10.5 1.5
9.9
9.5
9.9
10
10
10
10
10
Ð
Ð
Ð
Ð
Ð
2
at 5.5 V
1.5
1.5
1.5
1.5
1.5
1.5
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Ñ
Starts
Pad
9.7
9.2
8.9
8.9
8.9
8.9
8.9
Ñ
Ñ
Ñ
75 MHz
Ð
Ð
Ð
Ð
Ð
2
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
at V
Ñ
Ñ
Ñ
Ñ
Ñ
Starts
CC
Pad
, multiply
CC
8.8
9.2
8.4
9.2
9.2
8.9
8.9
8.9
8.8
9.2
9.2
9.2
8.9
9.2
8.9
Ð
Ð
Ð
Ð
Ð
MOTOROLA
2
Unit
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS