MAX19586ETN+TD Maxim Integrated, MAX19586ETN+TD Datasheet

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MAX19586ETN+TD

Manufacturer Part Number
MAX19586ETN+TD
Description
Analog to Digital Converters - ADC
Manufacturer
Maxim Integrated
Datasheet
1.MAX19586ETNTD.pdf (16 pages)

Specifications of MAX19586ETN+TD

Number Of Channels
1
Architecture
Pipeline
Conversion Rate
80 MSPs
Resolution
16 bit
Input Type
Differential
Snr
80 dB
Interface Type
Parallel
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Package / Case
TQFN EP
Maximum Power Dissipation
1325 mW
Minimum Operating Temperature
- 40 C
Number Of Converters
1
Voltage Reference
Internal, External
The MAX792/MAX820 microprocessor (µP) supervisory
circuits provide the most functions for power-supply
and watchdog monitoring in systems without battery
backup. Built-in features include the following:
• µP reset: Assertion of RESET and RESET outputs during
• Manual-reset input.
• Two-stage power-fail warning: A separate low-line
• Watchdog fault output: Assertion of WDO if the watchdog
• Pulsed watchdog output: Advance warning of
• Write protection of CMOS RAM, EEPROM, or other
The MAX792 and MAX820 are identical, except the
MAX820 guarantees higher low-line and reset threshold
accuracy (±2%).
19-0147; Rev. 4; 11/05
For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.
power-up, power-down, and brownout conditions.
RESET is guaranteed valid for V
comparator compares V
120mV above the reset threshold; the low-line and
reset thresholds can be programmed externally.
input is not toggled within a preset timeout
period.
impending WDO assertion from watchdog timeout that
causes hardware shutdown.
memory devices.
Computers
Controllers
Intelligent Instruments
Critical µP Power Monitoring
V
CC
________________________________________________________________ Maxim Integrated Products
General Description
CC
CC
to a preset threshold
down to 1V.
4
8
5
7
Applications
RESET IN/INT
LLIN/
REFOUT
OVI
SWT
Microprocessor and Nonvolatile
MAX792
V
GND
CC
12
3
LOW LINE
Memory Supervisory Circuits
CE OUT
RESET
CE IN
OVO
MR
1
13
14
6
10
9
ADDRESS
DECODER
0.1µF
♦ Manual-Reset Input
♦ 200ms Power-OK / Reset Time Delay
♦ Independent Watchdog Timer—Preset or Adjustable
♦ On-Board Gating of Chip-Enable Signals
♦ Memory Write-Cycle Completion
♦ 10ns (max) Chip-Enable Gate Propagation Delay
♦ Voltage Monitor for Overvoltage Warning
♦ ±2% Reset and Low-Line Threshold Accuracy
Ordering Information continued at end of data sheet.
* Dice are tested at T
**These parts offer a choice of five different reset threshold voltages.
Select the letter corresponding to the desired nominal reset threshold
voltage and insert it into the blank to complete the part number.
Devices in PDIP, SO and µMAX packages are available in both lead-
ed and lead-free packaging. Specify lead free by adding the + sym-
bol at the end of the part number when ordering. Lead free not avail-
able for CERDIP package.
MAX792_CPE
MAX792_CSE
MAX792_C/D
(MAX820, external programming mode)
PART**
SUFFIX
M
S
R
L
T
Typical Operating Circuit
A
RAM
= +25°C, DC parameters only.
TEMP. RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
Ordering Information
A0-A15
NMI
RESET
V
GND
µP
CC
RESET THRESHOLD (V)
16 Plastic DIP
16 Narrow SO
Dice*
PIN-PACKAGE
4.62
4.37
3.06
2.91
2.61
Features
1

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MAX19586ETN+TD Summary of contents

Page 1

... Computers Controllers Intelligent Instruments Critical µP Power Monitoring V CC ________________________________________________________________ Maxim Integrated Products For free samples and the latest literature, visit www.maxim-ic.com or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. Microprocessor and Nonvolatile Memory Supervisory Circuits ♦ Manual-Reset Input ♦ 200ms Power-OK / Reset Time Delay ♦ ...

Page 2

Microprocessor and Nonvolatile Memory Supervisory Circuits ABSOLUTE MAXIMUM RATINGS Input Voltage (with respect to GND) V .......................................................................-0.3V to +6V CC All Other Inputs.......................................-0. Input Current GND ................................................................................25mA All Other Outputs ............................................................25mA Continuous Power Dissipation (T = +70°C) A ...

Page 3

ELECTRICAL CHARACTERISTICS (continued 2.75V to 5.5V MIN MAX PARAMETER LOW-LINE COMPARATOR Low-Line Threshold Voltage (Internal Threshold Mode)—V TH Low-Line Threshold Voltage (External Programming Mode) Low-Line Hysteresis (Internal Threshold Mode) LLIN/REFOUT Leakage ...

Page 4

Microprocessor and Nonvolatile Memory Supervisory Circuits ELECTRICAL CHARACTERISTICS (continued +2.75V to +5.5V MIN MAX PARAMETER OVERVOLTAGE COMPARATOR OVI Input Threshold V CC OVI Leakage Current I SINK OVO Output Voltage I ...

Page 5

Operating Characteristics (T = +25°C, unless otherwise noted.) A SUPPLY CURRENT vs. TEMPERATURE 100 SWT = ALL OUTPUTS UNLOADED ...

Page 6

Microprocessor and Nonvolatile Memory Supervisory Circuits (T = +25°C, unless otherwise noted.) A INTERNAL-MODE RESET THRESHOLD vs. TEMPERATURE (NORMALIZED) 1.125 1.100 1.075 1.050 1.025 1.000 0.975 0.950 THE RESET THRESHOLD IS SHOWN 0.925 NORMALIZED TO 1, REPRESENTING ALL AVAILABLE MAX792/MAX820 ...

Page 7

Description PIN NAME Active-Low Reset Output goes low whenever V RESET 1 old programming mode, or RESET IN falls below 1.30V in external threshold programming mode. RESET remains low for 200ms typ after the threshold is exceeded on power-up. ...

Page 8

Microprocessor and Nonvolatile Memory Supervisory Circuits Detailed Description Manual-Reset Input Many µP-based products require manual-reset capabil- ity, allowing the operator to initiate a reset. The manu- al/external-reset input (MR) can connect directly to a switch without an external pull-up resistor ...

Page 9

RESET IN/ INT LLIN/ 5 REFOUT SWT 11 WDI 7 OVI Figure 1. MAX792/MAX820 Block Diagram _______________________________________________________________________________________ Microprocessor and Nonvolatile Memory Supervisory Circuits RESET COMPARATOR ...

Page 10

Microprocessor and Nonvolatile Memory Supervisory Circuits MR RESET OUT Figure 2. Manual-Reset Timing Diagram MANUAL RESET 9 * OTHER RESET * SOURCES . . . * DIODES NOT REQUIRED ON OPEN-DRAIN OUTPUTS Figure 3. Diode "OR" ...

Page 11

REGULATOR RESET IN/INT R1 MAX792 R4 MAX820 LLIN/REFOUT R2 GND LOW LINE 1 RESET R4 Figure 4c. Alternative Connection for External ...

Page 12

Microprocessor and Nonvolatile Memory Supervisory Circuits 1.6s WDI WDPO 70ns WDO Figure 7. WDI, WDO, and WDPO Timing Diagram default is 1.6s. Select alternative timeout periods by connecting an external capacitor from SWT to GND (see ...

Page 13

Chip-Enable Signal Gating The MAX792/MAX820 provide internal gating of chip- enable (CE) signals, which prevents erroneous data from corrupting CMOS RAM in the event of an under- voltage condition. The MAX792/MAX820 use a series transmission gate from ...

Page 14

Microprocessor and Nonvolatile Memory Supervisory Circuits + MAX792 MAX820 OUT GND 12 * MAXIMUM R VALUE DEPENDS ON P THE NUMBER OF RAMS. MINIMUM R VALUE IS 1kΩ P ...

Page 15

Information (continued) PART** TEMP. RANGE MAX792_EPE -40°C to +85°C MAX792_ESE -40°C to +85°C MAX792_EJE -40°C to +85°C MAX792_MJE -55°C to +125°C MAX820_CPE -0°C to +70°C MAX820_CSE -0°C to +70°C MAX820_EPE -40°C to +85°C MAX820_ESE -40°C to +85°C MAX820_EJE -40°C ...

Page 16

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © 2005 Maxim Integrated Products ...

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