QU80386EXTC25 Intel, QU80386EXTC25 Datasheet - Page 39

• Manufacturer Part Number: QU80386EXTC25
• Description: IC INT PROC 5V 25MHZ 132QFP
• Manufacturer: Intel

Specifications of QU80386EXTC25

• Processor Type: 386EX
• Features: 32-bit, Extended Temp
• Speed: 25MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 863826

Datasheet
Table 12. 3-Volt AC Characteristics (Sheet 3 of 5)
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
Synchronous Serial I/O (SSIO) Unit
t
t
t
NOTE:
42a
42b
43
44
45
46
47
47a
48
49
50
51
51a
52
100
101
102
1. Tested at maximum operating frequency and guaranteed by design characterization at lower operating
2. These are not tested. They are guaranteed by characterization.
3. Float condition occurs when maximum output current becomes less than I
4. These inputs may be asynchronous to CLK2. The setup and hold specifications are given to ensure
5. These specifications are for information only and are not tested. They are intended to assist the designer in
6. This specification assumes that READY# goes active after the rising edge of phase 2, so that WR# goes
7. This specification assumes that READY# goes active before the rising edge of phase 2, so that WR# goes
8. This specification applies if READY# is generated internally.
frequencies.
fully tested.
recognition within a specific CLK2 period.
selecting memory speeds. For each wait state in the design add two CLK2 cycles to the specification.
inactive as a result of READY# falling.
inactive as a result of phase 2 rising.
UCS#, CS6:0# Hold after
WR# High
A25:1. BHE#, BLE# Hold
After WR# High
D15:0 Output Valid to WR#
High
D15:0 Output Hold After WR#
High
WR# High to D15:0 Float
WR# Pulse Width
A25:1, BHE#, BLE# Valid to
D15:0 Valid
UCS#, CS6:0# Valid to D15-
D0 Valid
RD# Low to D15:0 Input Valid
D15:0 Hold After RD# High
RD# High to D15:0 Float
A25:1, BHE#, BLE# Hold
After RD# High
UCS#, CS6:0# Hold after
RD# High
RD# Pulse Width
STXCLK, SRXCLK
Frequency (Master Mode)
STXCLK, SRXCLK
Frequency (Slave Mode)
STXCLK, SRXCLK Low Time
Parameter
7CLK2/
2CLK2
2CLK2
3CLK2
CLK2
Min.
– 10
(ns)
–10
–10
–13
3.0 V to 3.6 V
10
0
0
0
0
2
25 MHz
3CLK2 –
4CLK2 -
4CLK2-
CLK2/8
CLK2/8
CLK2
CLK2
Max.
Intel386™ EX Embedded Microprocessor
+ 10
(ns)
41
42
39
7CLK2/
2CLK2
2CLK2
3CLK2
CLK2
Min.
– 10
(ns)
2.7 V to 3.6 V
–10
–10
–15
10
0
0
0
0
2
20 MHz
CLK2/8
CLK2/8
4CLK2
4CLK2
3CLK2
CLK2
CLK2
Max.
– 43
(ns)
+10
- 45
- 53
LO
in magnitude. Float delay is not
(7, 8)
(5)
(3)
(7)
(5)
(5)
(5)
(3)
(Unit is MHz)
(Unit is MHz)
(2)
Test Condition
39