24LC08B-MT MICROCHIP [Microchip Technology], 24LC08B-MT Datasheet

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24LC08B-MT

Manufacturer Part Number
24LC08B-MT
Description
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
I
FEATURES
• ISO 7816 compliant contact locations
• Single supply with operation from 2.5-5.5V
• Low power CMOS technology
• Organized as 4 or 8 blocks of 256 bytes
• 2-wire serial interface bus, I
• Schmitt trigger inputs for noise suppression
• Output slope control to eliminate ground bounce
• 100 kHz (2.5V) and 400kHz (5V) compatibility
• Self-timed write cycle (including auto-erase)
• Page-write buffer for up to 16 bytes
• 2 ms typical write cycle time for page-write
• ESD protection > 4,000V
• 1,000,000 ERASE/WRITE cycles guaranteed
• Data retention > 200 years
• Temperature range
DESCRIPTION
The Microchip Technology Inc. 24LC08B/16B are 8K
and 16K bit Electrically Erasable PROMs in ISO mod-
ules for smart card applications. The device is orga-
nized as four or eight blocks of 256 x 8-bit memory with
a 2-wire serial interface. The 24LC08B and 24LC16B
also have a page-write capability for up to 16 bytes of
data.
M
2
C is a trademark of Philips Corporation.
- 1 mA active current typical
- 10 A standby current typical at 5.5V
(4 x 256 x 8) or (8 x 256 x 8)
- Commercial (C):
1997 Microchip Technology Inc.
8K/16K I
2
C
0˚C to
2
C
24LC08B/16B MODULES
Serial EEPROMs in ISO Micromodules
compatible
+70˚C
ISO MODULE LAYOUT
BLOCK DIAGRAM
SDA
CONTROL
V
V
LOGIC
CC
SS
I/O
SCL
SCL
V
DD
CONTROL
MEMORY
LOGIC
XDEC
V
SDA
SS
DS21224A-page 1
HV GENERATOR
PAGE LATCHES
R/W CONTROL
SENSE AMP
EEPROM
ARRAY
YDEC

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24LC08B-MT Summary of contents

Page 1

... The Microchip Technology Inc. 24LC08B/16B are 8K and 16K bit Electrically Erasable PROMs in ISO mod- ules for smart card applications. The device is orga- nized as four or eight blocks of 256 x 8-bit memory with a 2-wire serial interface. The 24LC08B and 24LC16B also have a page-write capability for bytes of data trademark of Philips Corporation ...

Page 2

... MODULES 1.0 ELECTRICAL CHARACTERISTICS 1.1 Maximum Ratings* V ...................................................................................7.0V CC All inputs and outputs w.r.t. V ................-0. Storage temperature ..................................... -65˚C to +150˚C Ambient temp. with power applied................. -65˚C to +125˚C Soldering temperature of leads (10 seconds) ............. +300˚C ESD protection on all pins *Notice: Stresses above those listed under “Maximum ratings” ...

Page 3

... F T LOW SCL STA STA SDA SDA OUT 1997 Microchip Technology Inc. 24LC08B/16B MODULES Vcc = 2.5V to 5.5V Commercial (C): Vcc = 2.5V - 5.5V Vcc = 4.5V - 5.5V STD MODE FAST MODE Min. Max. Min. Max. — 100 — 400 4000 — 600 — 4700 — 1300 — ...

Page 4

... START and STOP conditions, while the 24LC08B/16B works as slave. Both, master and slave can operate as transmitter or receiver but the master device determines which mode is activated. ...

Page 5

... Following the start condition, the 24LC08B/16B moni- tors the SDA bus checking the device type identifier being transmitted, upon a 1010 code the slave device outputs an acknowledge signal on the SDA line. Depending on the state of the R/W bit, the 24LC08B/ 16B will select a read or write operation. Operation Read ...

Page 6

... The 24LC08B/ 16B acknowledges again and the master generates a stop condition. This initiates the internal write cycle, and during this time the 24LC08B/16B will not generate acknowledge signals (Figure 6-1). FIGURE 6-1: BYTE WRITE ...

Page 7

... Then the master issues the control byte again but with the R/W bit set to a one. The 24LC08B/ 16B will then issue an acknowledge and transmits the 8-bit data word. The master will not acknowledge the transfer but does generate a stop condition and the 24LC08B/16B discontinues transmission (Figure 8-2) ...

Page 8

... MODULES FIGURE 8-1: CURRENT ADDRESS READ S T BUS ACTIVITY A MASTER SDA LINE BUS ACTIVITY FIGURE 8-2: RANDOM READ S T BUS ACTIVITY A CONTROL MASTER BYTE SDA LINE BUS ACTIVITY FIGURE 8-3: SEQUENTIAL READ BUS ACTIVITY CONTROL MASTER BYTE SDA LINE A C BUS ACTIVITY ...

Page 9

... Each tray holds 150 modules, and the trays can be stacked in a manner similar to shipping die in waffle packs. A tray drawing with dimensions is shown in Figure 9-1. FIGURE 9-1: TRAY DIMENSIONS 1997 Microchip Technology Inc. 24LC08B/16B MODULES 9.374 [238.09] 8.145 [206.88] ANTISTATIC SMART CARD MODULES DS21224A-page 9 ...

Page 10

... MODULES FIGURE 9-2: MODULE DIMENSIONS DS21224A-page 10 1997 Microchip Technology Inc. ...

Page 11

... MODULES PRODUCT IDENTIFICATION SYSTEM To order or obtain information, e.g., on pricing or delivery, refer to the factory or the listed sales office. 24LC08B/16B — /MT Package: Temperature Range: Device: Sales and Support Data Sheets Products supported by a preliminary Data Sheet may have an errata sheet describing minor operational differences and recom- mended workarounds ...

Page 12

M W ORLDWIDE AMERICAS Corporate Office Microchip Technology Inc. 2355 West Chandler Blvd. Chandler, AZ 85224-6199 Tel: 602-786-7200 Fax: 602-786-7277 Technical Support: 602 786-7627 Web: http://www.microchip.com Atlanta Microchip Technology Inc. 500 Sugar Mill Road, Suite 200B Atlanta, GA 30350 Tel: ...

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