Panasonic SV-MP720VGC, Руководство пользователя

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N.C R/B RE CE Vcc Vss CLE ALE WE WP
I/O
0
I/O
1 I/O
2 I/O
3
Vss Vcc
I/O
4
I/O
5 I/O
6
I/O
7
IC2
FLASH MEMORY
15
14
5
7
9
11
13
12
10
8
6
3
4
1
2
17
16
19
18
21
20
23
22
24
CN5
30
28
29
26
27
25
MEMORY BLOCK
B
(TO MAIN CIRCUIT CN1)
D9
KEY
I/O 0 ~ I/O7:
DATA INPUTS/OUTPUTS
The I/O pins are used to input
command,address and data, and
to output data during read operations.
The I/O pins float to high-z when the
chip is deselected or when the
outputs are disabled.
Vcc:
POWER
Vcc is the power supply for device.
Vss: GROUND
R/B: READY/BUSY OUTPUT
The R/B output indicates the status of the device operation.When low, it indicates that a program, erase or random read operation is in process and returns to high
state upon completion.It is an open drain output and does not float to high-z condition when the chip is deselected or when outputs are disabled.
RE: READ ENABLE
The RE input is the serial data-out control, and when active drives the data onto the I/O bus. Data is valid tREA after the falling edge of RE which also increments
the internal column address counter by one.
CE: CHIP ENABLE
The CE input is the device selection control. When the device is in the Busy state, CE high is ignored, and the device does not return to standby mode in program
or erase opertion. Regarding CE control during read operation, refer to "Page read" section of Device operation.
CLE: COMMAND LATCH ENABLE
The CLE input controls the activating path for commands sent to the command register. When active high, commands are latched into the command register through
the I/O ports on the rising edge of the WE signal.
ALE: ADDRESS LATCH ENABLE
The ALE input controls the activating path for address to the internal address registers.Addresses are latched on the rising edge of WE with ALE high.
WE: WRITE ENABLE
The WE input controls writes to the I/O port. Commands, address and data are latched on the rising edge of the WE pulse.
WP: WRITE PROTECT
The WP pin provides inadvertent write/erase protection during power transitions. The internal high voltage generator is reset when the WP pin is active low.
PIN DESCRIPTION
PIN DESCRIPTION
Chargeable Control Pin
5V
Q2
Q3
B1ADMD000012
2SA1774STL
CHARGEABLE
CHARGEABLE
0.68
1.04
0.68
0.69
0.69
1.05
D3
MA3J14700L
Battery
SV-MP720V(GC/GK/GD/GN/GH) BLOCK DIAGRAM