M66007P MITSUBISHI, M66007P Datasheet

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M66007P

Manufacturer Part Number
M66007P
Description
12-bit input expander
Manufacturer
MITSUBISHI
Datasheet
DESCRIPTION
The M66007 is a semiconductor integrated circuit providing
the 12-bit parallel input-serial output shift register function.
This product is completely designed with CMOS to sharply
reduce power consumption compared with bipolar or Bi-
CMOS product.
The M66007, developed as an input only expander IC neces-
sary for microcomputer periphery, is widely applicable as a
data parallel/serial conversion IC.
FEATURES
• Control signals of only two pins including LE/D and CLK
• Low power consumption of 50 µW/package maximum
• Schmitt triggered input (LE/D, CLK, D0 to D11)
• Wide operating supply voltage range (Vcc=2~6V)
• Wide operating temperature range (Ta=–20~75°C)
APPLICATION
Parallel/serial data conversion for microcomputer periphery
FUNCTION
The M66007 uses a silicon gate CMOS process to achieve
low power consumption and high noise margin.
For control signals, this IC adopts only the two pins of latch
input/serial data output LE/D and clock input CLK. Each bit
of shift register of 12-bit parallel input-serial output consists of
flip-flop for shift.
When LE/D is placed in input mode, CLK is set to “H” and LE/
D changes from “H” to “L”, the status of parallel data inputs D0
to D11 at that time is latched with the flip-flop for shift and LE/
D is switched to output mode to output “L”.
BLOCK DIAGRAM
(Vcc=5V, Ta=25°C at time of standstill)
LATCH INPUT/
SERIAL DATA OUTPUT
CLOCK INPUT
LE/D
CLK
Vcc
GND
16
8
1
2
Vcc
Q
LCLK
Q
CLK
P
N
Q
D
D
D
15
11
11
11
11
Q
After this, change of CLK from “H” to “L” makes the shift regis-
ter perform shift operation and LE/D outputs the contents of
the shift register from D0 in order.
In addition, the shift operation for up to the 12th bit is carried
out and then LE/D is switched to the input mode at the falling
edge of CLK of the 13th bit.
When power is turned on, the input/output mode of LE/D is
indeterminate. However, detection of 13 or more falling
edges of CLK sets LE/D in the input mode.
D
D
D
14
LATCH INPUT/
SERIAL DATA OUTPUT
10
10
10
10
PIN CONFIGURATION (TOP VIEW)
Q
D
D
D
13
9
9
9
9
CLOCK INPUT
Q
D
D
12 11
D
PARALLEL
DATA INPUT
8
8
8
8
PARALLEL DATA INPUT
CONTROL CIRCUIT
SHIFT REGISTER
PARALLEL LATCH
D
D
7
7
D
D
10
6
6
SD
SQ
LE/D
GND
CLK
D0
D1
D2
D3
D4
D
D
9
5
5
M66007P/FP
MITSUBISHI DIGITAL ASSP
Outline 16P4
D
D
7
4
4
MITSUBISHI DIGITAL ASSP
1
2
3
4
5
6
7
8
D
D
6
3
3
12-BIT INPUT EXPANDER
LE/D
CLK
D0
D1
D2
D3
D4
D
D
16P2N-A
5
12-BIT INPUT EXPANDER
2
2
D11
D10
D
D
4
D9
D8
D7
D6
D5
M66007P/FP
1
1
D
Q
D
D
3
0
0
0
0
LE
LE
16
15
14
13
12
11
10
9
D11
D10
D9
D8
D7
D6
D5
V
CC
PARALLEL
DATA INPUT
1

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M66007P Summary of contents

Page 1

... Vcc Q P CONTROL CIRCUIT LCLK SHIFT REGISTER CLK PARALLEL LATCH PARALLEL DATA INPUT MITSUBISHI DIGITAL ASSP MITSUBISHI DIGITAL ASSP M66007P/FP M66007P/FP 12-BIT INPUT EXPANDER 12-BIT INPUT EXPANDER LE/D LE CLK 2 CLK D11 15 D11 D10 D10 PARALLEL DATA INPUT GND Outline 16P4 16P2N ...

Page 2

... After the output of 12-bit data of D switched to input mode at the 13th falling edge of CLK to wait for next access. Keep the LE/D pin set to “H” until the 0 next access starts (1) ( Input mode (Latch signal) MITSUBISHI DIGITAL ASSP M66007P/FP 12-BIT INPUT EXPANDER ( ...

Page 3

... I T+ T– V =6V V =GND GND, V =6V, LE/D=“H” GND, V =6V, LE/D=“L” Conditions C =50pF (Note 1) L MITSUBISHI DIGITAL ASSP M66007P/FP 12-BIT INPUT EXPANDER Ratings –0.5 ~ +7.0 –0 0.5 CC –0 0.5 CC –20 20 –20 20 ±20 –60 ~ 150 Unit Max °C Limits T =25˚ ...

Page 4

... Characteristics (10%~90%) of pulse gen- erator (PG 6ns (2) Electrostatic capacitance C R =1k L floating capacitance of connection and probe input capacitance. SW1 LE/D SW2 =1k L MITSUBISHI DIGITAL ASSP M66007P/FP 12-BIT INPUT EXPANDER Limits Unit T = –20 ~ 75˚C a Min. Typ. Max. 250 ns 250 100 ns 100 200 ns 200 = 6ns f includes the ...

Page 5

... TIMING DIAGRAM – CLK 50% 50 PLZ LE/D 50% (OUT) CLK 50% t PLZ Input mode Output mode 10% LE/D LE/D 90% t PHZ CLK 50 50 – w LED 50% (IN) 10 50% 0V PZL MITSUBISHI DIGITAL ASSP M66007P/FP 12-BIT INPUT EXPANDER 5 ...

Page 6

... Input mode Input/output indeterminate Output mode 13 clocks or more 2 Pull-resistance Port Serial resistance Port (CLK) Connection Example of MCU and M66007 MITSUBISHI DIGITAL ASSP M66007P/FP 12-BIT INPUT EXPANDER levels cannot be affected. (with approx. 20k pull- M66007 RESET Output mode Input mode 3 I/O=LE/D M66007 I=CLK OH ...

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