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Número de pieza | AT24C16B | |
Descripción | Two-wire Serial EEPROM | |
Fabricantes | ATMEL Corporation | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de AT24C16B (archivo pdf) en la parte inferior de esta página. Total 27 Páginas | ||
No Preview Available ! 1. Features
• Low-voltage and Standard-voltage Operation
– 1.8 (VCC = 1.8V to 5.5V)
• Internally Organized 2048 x 8 (16K)
• Two-wire Serial Interface
• Schmitt Trigger, Filtered Inputs for Noise Suppression
• Bidirectional Data Transfer Protocol
• 1 MHz (5V, 2.5V), 400 kHz (1.8V) Compatibility
• Write Protect Pin for Hardware Data Protection
• 16-byte Page (16K) Write Modes
• Partial Page Writes Allowed
• Self-timed Write Cycle (5 ms max)
• High-reliability
– Endurance: 1 Million Write Cycles
– Data Retention: 100 Years
• 8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra-Thin Mini-MAP (MLP 2x3), 5-lead SOT23,
8-lead Ultra Lead Frame Land Grid Array (ULA), 8-lead TSSOP and 8-ball dBGA2
Packages
• Lead-free/Halogen-free
• Die Sales: Wafer Form, Tape and Reel, and Bumped Wafers
Two-wire
Serial EEPROM
16K (2048 x 8)
AT24C16B
2. Description
The AT24C16B provides 16384 bits of serial electrically erasable and programmable
read-only memory (EEPROM) organized as 2048 words of 8 bits each. The device is
optimized for use in many industrial and commercial applications where low-power
and low-voltage operation are essential. The AT24C16B is available in space-saving
8-lead PDIP, 8-lead JEDEC SOIC, 8-lead Ultra Thin Mini-MAP (MLP 2x3), 5-lead
SOT23, 8-lead Ultra Lead Frame Land Grid Array (ULA), 8-lead TSSOP, and 8-ball
dBGA2 packages and is accessed via a Two-wire serial interface. In addition, the
AT24C16B is available in 1.8V (1.8V to 5.5V) version.
Table 2-1.
Pin Name
NC
SDA
SCL
WP
Pin Configuration
Function
8-lead Ultra Thin
Mini-MAP (MLP 2x3)
No Connect
VCC 8
1 NC
Serial Data
Serial Clock Input
WP 7
SCL 6
SDA 5
2 NC
3 NC
4 GND
Write Protect
Bottom View
8-ball dBGA2
VCC 8 1 NC
WP 7 2 NC
SCL 6 3 NC
SDA 5 4 GND
Bottom View
GND
VCC
Ground
Power Supply
8-lead Ultra Lead Frame
Land Grid Array (ULA)
8-lead TSSOP
NC 1
8 VCC
NC 2
7 WP
NC 3
6 SCL
GND 4
5 SDA
8-lead SOIC
NC 1
8 VCC
NC 2
7 WP
NC
GND
3
4
6 SCL
5 SDA
VCC 8 1 NC
WP 7 2 NC
SCL 6 3 NC
SDA 5 4 GND
Bottom View
5-lead SOT23
SCL 1
5 WP
GND 2
SDA 3
4 VCC
8-lead PDIP
NC
NC
NC
GND
1
2
3
4
8 VCC
7 WP
6 SCL
5 SDA
Not Recommeded
for New Design.
Replaced by
AT24C16C.
5175E–SEEPR–3/09
1 page AT24C16B
Table 4-3. AC Characteristics (Industrial Temperature)
Applicable over recommended operating range from TAI = 40C to +85C, VCC = +1.8V to +5.5V, CL = 100 pF (unless oth-
erwise noted). Test conditions are listed in Note 2.
1.8-volt
2.5, 5.0-volt
Symbol
Parameter
Min Max Min Max Units
fSCL
tLOW
tHIGH
tAA
tBUF
Clock Frequency, SCL
Clock Pulse Width Low
Clock Pulse Width High
Clock Low to Data Out Valid
Time the bus must be free before a new transmission
can start(1)
1.3
0.6
0.05
1.3
400 1000
0.4
0.4
0.9 0.05 0.55
0.5
kHz
µs
µs
µs
µs
tHD.STA
Start Hold Time
0.6 0.25
µs
tSU.STA
Start Set-up Time
0.6 0.25
µs
tHD.DAT
Data In Hold Time
0 0 µs
tSU.DAT
tR
tF
Data In Set-up Time
Inputs Rise Time(1)
Inputs Fall Time(1)
100 100
0.3 0.3
300 100
ns
µs
ns
tSU.STO
Stop Set-up Time
0.6 0.25
µs
tDH Data Out Hold Time
50 50
ns
tWR Write Cycle Time
5 5 ms
Endurance(1) 25°C, Page Mode, 3.3V
1,000,000
Write
Cycles
Notes: 1. This parameter is characterized and is not 100% tested.
2. AC measurement conditions:
RL (connects to VCC): 1.3 k (2.5V, 5.0V), 10 k (1.8V)
Input pulse voltages: 0.3 VCC to 0.7 VCC
Input rise and fall times: 50 ns
Input and output timing reference voltages: 0.5 VCC
5175E–SEEPR–3/09
5
5 Page Figure 10-2. Byte Write
Figure 10-3. Page Write
Figure 10-4. Current Address Read
AT24C16B
5175E–SEEPR–3/09
11
11 Page |
Páginas | Total 27 Páginas | |
PDF Descargar | [ Datasheet AT24C16B.PDF ] |
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