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PDF MAX780 Data sheet ( Hoja de datos )
| Número de pieza | MAX780 | |
| Descripción | Dual-Slot PCMCIA Analog Power Controller | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX780 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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19-0125; Rev. 1; 8/93
Dual-Slot PCMCIA Analog Power Controller
_______________General Description
The MAX780A provides the power switching and status
signals necessary to control two Personal Computer
Memory Card International Association (PCMCIA)
Release 2.0 card slots. The MAX780A, used in conjunc-
tion with a PC Card Interface Digital Controller, forms a
complete, minimum component count PCMCIA interface
for palmtop and notebook computers.
The MAX780A incorporates two 0V/+5V/+12V/high-
impedance power outputs for flash VPP programming,
level shifters for power MOSFET control of two sepa-
rate +3.3V/+5V supplies, and two VPP power-ready
status signals. The MAX780A may be directly con-
nected to the control outputs from a PCMCIA digital
controller, or may be configured to use internal edge-
triggered registers for connection to the CPU data bus.
The MAX780B has all the features of the MAX780A but
omits the reference and VPP valid indicators. The
MAX780C has all the features of the MAX780A but
omits the registers for the digital inputs. The MAX780D
omits the reference, the VPP valid indicators, and the
digital input registers.
Part
Number
MAX780A
MAX780B
MAX780C
MAX780D
Reference &
VPP Status
Indicators
Registers for
Direct
Connection to
CPU Data Bus
Dual VPP
Switches &
Level Shifters
for VCC
Switching
_______________________Applications
Notebook and Palmtop Computers
Personal Organizers
Digital Cameras
Handiterminals
Bar-Code Readers
___________________________Features
o SSOP Circuit Fits in 0.09in2
o Smallest Complete Analog Controller for Two
PCMCIA (Release 2.0/JEIDA 4.1) PC Card Sockets
o Dual VCC Contols and VPP Outputs
o Logic-Compatible with Industry-Standard
PCMCIA Digital Controllers:
Intel 82365SL_DF
Fujitsu MB86301
Chips and Technology F8680
Cirrus Logic CL-PD6720
o 0V/+5V/+12V/High-Impedance VPP Outputs
o Internal 1.6Ω VPP Power Switches
o Dual Voltage 3.3V/5V VCC Operation
o VPP Power-Ready Status Signals
o 130µA Quiescent Supply Current
(3.5µA in Shutdown)
o Break-Before-Make Switching
______________Ordering Information
PART
TEMP. RANGE
MAX780ACNG 0°C to +70°C
MAX780ACAG 0°C to +70°C
MAX780AC/D 0°C to +70°C
MAX780AENG -40°C to +85°C
MAX780AEAG -40°C to +85°C
PIN-PACKAGE
24 Narrow Plastic DIP
24 SSOP
Dice*
24 Narrow Plastic DIP
24 SSOP
Ordering Information continued on last page.
* Contact factory for dice specifications.
__________Typical Operating Circuit
+12V +5V
+3.3V
VPPIN VCCIN
ADRV3
MAX780A
ADRV5
VCC
PCMCIA SLOT
+5V VPP #1
SHDN
REF
C1
BDRV3
BDRV5
AVPP
BVPP
C2 DIGITAL
I/O
WR
GND
VCC
+5V
PCMCIA SLOT
VPP #2
PCMCIA
DIGITAL
CONTROLLER
________________________________________________________________ Maxim Integrated Products 1
Call toll free 1-800-998-8800 for free samples or literature.
1 page  
Dual-Slot PCMCIA Analog Power Controller
________________________________________________________Pin Description
PIN
MAX780A/B/C MAX780D
NAME
1 C2
2
3
4, 5
6, 7
8, 9
10, 11
12, 13
14, 15
16
17
1 C1
WR
2, 3
4, 5
6, 7
8, 9
10, 11
12, 13
AVPP1,
AVPP0
BVPP1,
BVPP0
AVCC1,
AVCC0
BVCC1,
BVCC0
BDRV5,
BDRV3
ADRV5,
ADRV3
BGPI
AGPI
18 14 SHDN
15 N.C.
19 REF
20 16 BVPP
21 17 AVPP
22 18 VCCIN
23 19 VPPIN
24 20 GND
FUNCTION
Pin-strap input that selects edge-triggered register or direct digital inputs. Tying C2 to
VCCIN makes the logic inputs edge triggered; inputs to pins 4-11 are clocked in on the
rising edge of WR. Tying C2 to GND allows control signals to be directly applied to the
logic inputs on pins 4-11. Connect to GND for MAX780C.
Pin-strap input that selects one of two logic decode modes for the digital inputs. See Tables 1-3.
Write pulse input. When C2 is tied to VCCIN, a rising edge on WR clocks in the VCC
and VPP enables. When C2 is tied to GND, inputs to WR have no effect. Connect to
GND for MAX780C.
Logic inputs that control the voltage on AVPP.
Logic inputs that control the voltage on BVPP.
Logic inputs that control the state of the MOSFET gate drivers ADRV3 and ADRV5.
Logic inputs that control the state of the MOSFET gate drivers BDRV3 and BDRV5.
Open-drain gate driver outputs that control the MOSFETs that switch the VCC pin of slot
B to 0V, 3.0V/3.3V, or 5V.
Open-drain gate driver outputs that control the MOSFETs that switch the VCC pin of slot
A to 0V, 3.0V/3.3V, or 5V.
Logic-level power-ready output that stays low as long as BVPP is greater than 11.05V
(MAX780A and MAX780C only). Make no connection to this pin for MAX780B.
Logic-level power-ready output that stays low as long as AVPP is greater than 11.05V
(MAX780A and MAX780C only). Make no connection to this pin for MAX780B.
Logic input that shuts the MAX780 down to a low supply-current state when brought
low. Asserting SHDN forces ADRV3, BDRV3, ADRV5, BDRV5, REF, AGPI, and BGPI
low. All VPP inputs and outputs are functional for either state of SHDN. Program AVPP
and BVPP to 0V for lowest power consumption.
No connect. Not internally connected.
1.25V reference voltage output (MAX780A and MAX780C only). Make no connection to
this pin for MAX780B.)
Switched output that provides 0V, 5V, or 12V to the VPP pins of slot B.
Switched output that provides 0V, 5V, or 12V to the VPP pins of slot A.
+5V power input
+12V power input. VPPIN can have 0V or 5V applied as long as VCCIN = 5V.
Ground
_______________________________________________________________________________________ 5
5 Page 
Dual-Slot PCMCIA Analog Power Controller
__Ordering Information (continued)
PART
TEMP. RANGE
PIN-PACKAGE
MAX780BCNG 0°C to +70°C 24 Narrow Plastic DIP
MAX780BCAG 0°C to +70°C 24 SSOP
MAX780BC/D 0°C to +70°C Dice*
MAX780BENG -40°C to +85°C 24 Narrow Plastic DIP
MAX780BEAG -40°C to +85°C 24 SSOP
MAX780CCNG 0°C to +70°C 24 Narrow Plastic DIP
MAX780CCAG 0°C to +70°C 24 SSOP
MAX780CC/D 0°C to +70°C Dice*
MAX780CENG -40°C to +85°C 24 Narrow Plastic DIP
MAX780CEAG -40°C to +85°C 24 SSOP
MAX780DCPP 0°C to +70°C 20 Plastic DIP
MAX780DCAP 0°C to +70°C 20 SSOP
MAX780DC/D 0°C to +70°C Dice*
MAX780DEPP -40°C to +85°C 20 Plastic DIP
MAX780DEAP -40°C to +85°C 20 SSOP
* Contact factory for dice specifications.
___________________Chip Topography
C2
C1 GND VPPIN VCCIN
WR
AVPP0
AVPP1
BVPP0
BVPP1
AVCC0
AVCC1
AVPP
BVCC1 BDRV3 ADRV3
BVCC0 BDRV5 ADRV5
BVPP 0.111"
(2.819mm)
REF
SHDN
AGPI
BGPI
0.085"
(2.159mm)
_______________________________________________________Package Information
D1
A A2
A1
L
D
e
B
A3
α
B1
E
E1
eA
eB
INCHES
DIM
MIN MAX
MILLIMETERS
MIN MAX
A – 0.200 –
5.08
A1 0.015
–
0.38
–
A2 0.125 0.150 3.18 3.81
A3 0.055 0.080 1.40 2.03
B 0.016 0.022 0.41 0.56
B1 0.050 0.065 1.27 1.65
C 0.008 0.012 0.20 0.30
D 1.235 1.265 31.37 32.13
D1 0.050 0.080 1.27 2.03
E 0.300 0.325 7.62 8.26
E1 0.240 0.280 6.10 7.11
e 0.100 BSC
2.54 BSC
eA 0.300 BSC
eB –
0.400
L 0.115 0.150
7.62 BSC
– 10.16
2.92 3.81
α 0˚ 15˚ 0˚ 15˚
21-337A
24-PIN PLASTIC
C DUAL-IN-LINE
(NARROW)
PACKAGE
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet MAX780.PDF ] | |
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