- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄360615 > 93AA76P Microwire Serial EEPROM PDF資料下載
參數(shù)資料
| 型號(hào)： | 93AA76P |
| 英文描述： | Microwire Serial EEPROM |
| 中文描述： | 微型導(dǎo)線(xiàn)串行EEPROM |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大?。?/td> | 348K |
| 代理商： | 93AA76P |
2001 Microchip Technology Inc.
DS21130D-page 9
93AA76/86
FIGURE 3-8:
ERAL
Guaranteed at V
CC
= +4.5V to +6.0V.
ORG=V
CC
, 8 X
’
s
ORG=V
SS
, 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
control 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 93AA76/86.
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 contin-
ued anytime with respect to clock HIGH time (T
CKH
)
and clock LOW time (T
CKL
). This gives the controlling
master 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 condi-
tion 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 informa-
tion during ERASE and WRITE cycles. READY/BUSY
status 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
organization is selected. When ORG is tied to V
SS
, the
x8 memory organization is selected. There is an inter-
nal pull-up resistor on the ORG pin that will select x16
organization 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 inhib-
ited. There is an internal pull-up on this device that
enables programming 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 |
|---|---|
| 93AA76SN | Microwire Serial EEPROM |
| 93AA76TSN | Microwire Serial EEPROM |
| 93AA86 | Serial EEPROM |
| 93AA86P | Microwire Serial EEPROM |
| 93AA86SN | Microwire Serial EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 93AA76T/SN | 功能描述:電可擦除可編程只讀存儲(chǔ)器 516x8-1024x8 - 1.8V RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 93AA86/P | 功能描述:電可擦除可編程只讀存儲(chǔ)器 1024x16-2048x8 1.8V RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 93AA86/SN | 功能描述:電可擦除可編程只讀存儲(chǔ)器 1024x16-2048x8 1.8V RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 93AA86A-I/MS | 功能描述:電可擦除可編程只讀存儲(chǔ)器 16K 2048 X 8 SERIAL EE,1.8V,IND RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 93AA86A-I/P | 功能描述:電可擦除可編程只讀存儲(chǔ)器 16K 2048 X 8 SERIAL EE,1.8V,IND RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)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(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。