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MIC2568 Datasheet, PDF (2/10 Pages) Micrel Semiconductor – Dual-Slot PC Card/CardBus Power Controller
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MIC2568
Ordering Information
Part Number
MIC2568-0BSM
MIC2568-1BSM
MIC2568-0YSM
MIC2568-1YSM
MIC2568-0BTS
MIC2568-1BTS
Pin Configuration
Operating
Temperature Range
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
–40°C to +85°C
Package
28-pin SSOP
28-pin SSOP
28-pin SSOP
28-pin SSOP
28-pin TSSOP
28-pin TSSOP
Pb-Free
X
X
Micrel
A VCC5 IN
A VCC OUT
A VCC5 IN
GND
A VCC5 EN
A VCC3 EN
A EN0
A EN1
NC
B VPP OUT
NC
B VCC OUT
B VCC3 IN
B VCC OUT
1
2
3
4
5
6
7*
8*
9
10
11
12
13
14
28
27
26
25
24
23
* 22
* 21
20
19
18
17
16
15
A VCC OUT
A VCC3 IN
A VCC OUT
NC
A VPP OUT
NC
B EN1
B EN0
B VCC3 EN
B VCC5 EN
GND
B VCC5 IN
B VCC OUT
B VCC5 IN
A VCC5 IN
1
A VCC OUT
2
A VCC5 IN
3
GND
4
A VCC5 EN
A VCC3 EN
A VPP_VCC
A VPP_PGM
NC
5
6
7*
8*
9
B VPP OUT
10
NC 11
B VCC OUT
12
B VCC3 IN
13
B VCC OUT
14
28
27
26
25
24
23
* 22
* 21
20
19
18
17
16
15
A VCC OUT
A VCC3 IN
A VCC OUT
NC
A VPP OUT
NC
B VPP_PGM
B VPP_VCC
B VCC3 EN
B VCC5 EN
GND
B VCC5 IN
B VCC OUT
B VCC5 IN
Pin Description
MIC2568-0
MIC2568-1
* Denotes pinout differences. Duplicate pins must be connected together for proper operation.
Example: "A VCC5IN" pins 1 and 3 must be connected.
Pin Number
MIC2568-0
1, 3 / 15, 17
Pin Number
MIC2568-1
1, 3 / 15, 17
Pin Name
A / B VCC5 IN
2,26,28/12,14,16 2,26,28/12,14,16 A / B VCC OUT
4, 18
5 / 19
6 / 20
7 / 21
4, 18
5 / 19
6 / 20
7 / 21
GND
A / B VCC5 EN
A / B VCC3 EN
A / B EN0
A / B VPP_VCC
8 / 22
24 / 10
9, 11, 23, 25
27 / 13
8 / 22
24 / 10
9, 11, 23, 25
27 / 13
A / B EN1
A / B VPP_PGM
A / B VPP OUT
NC
A / B VCC3 IN
Pin Function
5V Nominal Supply Input: Optional supply, switchable to VCC and VPP
outputs.
VCC Output: 0V (ground), 3.3V, 5V, or high-impedance output. Pins 2, 26,
and 28 must be externally connected. Pins 12, 14, and 16 must be externally
connected.
Ground.
VCC 5V Enable (Input).
VCC 3.3V Enable (Input).
Enable 0: Micrel standard logic-control signal. MIC2568-0 only.
VPP_VCC Control: Cirrus Logic logic-controller compatible control signal.
MIC2568-1 only.
Enable 1: Micrel standard logic-control signal. MIC2568-0 only.
Program: Cirrus Logic-compatible control signal. MIC2568-1 only.
VPP Output: 0V (ground), 3.3V, 5V, or high-impedance output.
Not internally connected.
3.3V Nominal Supply Input: Mandatory supply, switchable to VCC and VPP
outputs. Also powers MIC2568 internal circuitry.
MIC2568
2
May 2003
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