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參數(shù)資料
| 型號： | 93LC76-P |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 8K/16K 2.5V Microwire Serial EEPROM |
| 中文描述： | 8K/16K 2.5V的微型導(dǎo)線串行EEPROM |
| 文件頁數(shù)： | 9/12頁 |
| 文件大?。?/td> | 86K |
| 代理商： | 93LC76-P |
1996 Microchip Technology Inc.
Preliminary
DS21131C-page 9
93LC76/86
FIGURE 3-8:
ERAL
Guaranteed at VCC = +4.5V to +6.0V.
ORG=VCC, 8 X’s
ORG=VSS, 9 X’s
1
0
0
1
0
X
X
...
CS
CLK
DI
DO
T
EC
T
CZ
HIGH IMPEDANCE
BUSY
READY
STANDBY
4.0
PIN DESCRIPTIONS
4.1
Chip Select (CS)
A HIGH level selects the device. A LOW level deselects
the device and forces it into standby mode. However, a
programming cycle which is already initiated will be
completed, regardless of the CS input signal. If CS is
brought LOW during a program cycle, the device will go
into standby mode as soon as the programming cycle
is completed.
CS must be LOW for 250 ns minimum (T
CSL
) between
consecutive instructions. If CS is LOW, the internal con-
trol logic is held in a RESET status.
4.2
Serial Clock (CLK)
The Serial Clock is used to synchronize the communi-
cation between a master device and the 93LC76/86.
Opcode, address, and data bits are clocked in on the
positive edge of CLK. Data bits are also clocked out on
the positive edge of CLK.
CLK can be stopped anywhere in the transmission
sequence (at HIGH or LOW level) and can be continued
anytime with respect to clock HIGH time (T
CKH
) and
clock LOW time (T
CKL
). This gives the controlling mas-
ter freedom in preparing opcode, address, and data.
CLK is a “Don't Care” if CS is LOW (device deselected).
If CS is HIGH, but START condition has not been
detected, any number of clock cycles can be received
by the device without changing its status (i.e., waiting
for START condition).
CLK cycles are not required during the self-timed
WRITE (i.e., auto ERASE/WRITE) cycle.
After detection of a start condition the specified number
of clock cycles (respectively LOW to HIGH transitions of
CLK) must be provided. These clock cycles are
required to clock in all opcode, address, and data bits
before an instruction is executed (see Table 1-4 through
Table 1-7 for more details). CLK and DI then become
don't care inputs waiting for a new start condition to be
detected.
4.3
Data In (DI)
Data In is used to clock in a START bit, opcode,
address, and data synchronously with the CLK input.
4.4
Data Out (DO)
Data Out is used in the READ mode to output data syn-
chronously with the CLK input (T
PD
after the positive
edge of CLK).
This pin also provides READY/BUSY status information
during ERASE and WRITE cycles. READY/BUSY sta-
tus information is available when CS is high. It will be
displayed until the next start bit occurs as long as CS
stays high.
4.5
Organization (ORG)
When ORG is connected to V
CC
, the x16 memory orga-
nization is selected. When ORG is tied to V
SS
, the x8
memory organization is selected. There is an internal
pull-up resistor on the ORG pin that will select x16 orga-
nization when left unconnected.
4.6
Program Enable (PE)
This pin allows the user to enable or disable the ability
to write data to the memory array. If the PE pin is floated
or tied to V
CC
, the device can be programmed. If the PE
pin is tied to V
SS
, programming will be inhibited. There
is an internal pull-up on this device that enables pro-
gramming if this pin is left floating.
Note:
CS must go LOW between consecutive
instructions, except when performing a
sequential read (Refer to Section 3.1 for
more detail on sequential reads).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 93LC76-SN | 8K/16K 2.5V Microwire Serial EEPROM |
| 93LC76 | 16-Bit Buffers/Drivers With 3-State Outputs 48-SSOP -40 to 85 |
| 93LC86 | 16-Bit Buffers/Drivers With 3-State Outputs 48-SSOP -40 to 85 |
| 93LC86-IP | 8K/16K 2.5V Microwire Serial EEPROM |
| 93LC86-ISN | 16-Bit Buffers/Drivers With 3-State Outputs 48-SSOP -40 to 85 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 93LC76T/SN | 功能描述:電可擦除可編程只讀存儲器 516x8 Or 1024x8 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 93LC76T-I/SN | 功能描述:電可擦除可編程只讀存儲器 516x8 Or 1024x8 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 93LC86/P | 功能描述:電可擦除可編程只讀存儲器 1024x16-2048x8 PDIP8 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 93LC86-/P | 制造商:Microchip Technology 功能描述:16k(2k~8 / 1k~16) 2MHz 2.5V to 5.5V VA / Microwire 8DIP Bulk |
| 93LC86/P | 制造商:Microchip Technology Inc 功能描述:EEPROM IC Memory Type:Serial EEPROM |
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