74AHCT594 PDF даташит
Спецификация 74AHCT594 изготовлена «NXP Semiconductors» и имеет функцию, называемую «8-bit shift register». |
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Детали детали
Номер произв | 74AHCT594 |
Описание | 8-bit shift register |
Производители | NXP Semiconductors |
логотип |
29 Pages
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74AHC594; 74AHCT594
8-bit shift register with output register
Rev. 01 — 4 July 2006
Product data sheet
1. General description
The 74AHC594; 74AHCT594 is a high-speed Si-gate CMOS device and is pin compatible
with Low-Power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard
No. 7A.
The 74AHC594; 74AHCT594 is an 8-bit, non-inverting, serial-in, parallel-out shift register
that feeds an 8-bit D-type storage register. Separate clocks (SHCP and STCP) and direct
overriding clears (SHR and STR) are provided on both the shift and storage registers.
A serial output (Q7S) is provided for cascading purposes.
Both the shift and storage register clocks are positive-edge triggered. If the user wishes to
connect both clocks together, the shift register will always be one count pulse ahead of the
storage register.
2. Features
s Wide supply voltage range from 2.0 V to 5.5 V
s 8-bit serial-in, parallel-out shift register with storage
s Independent direct overriding clears on shift and storage registers
s Independent clocks for shift and storage registers
s Latch-up performance exceeds 100 mA per JESD 78 Class II
s Input levels:
x CMOS levels: 74AHC594 only
x TTL levels: 74AHCT594 only
s ESD protection:
x HBM JESD22-A114-C exceeds 2000 V
x MM JESD22-A115-A exceeds 200 V
x CDM JESD22-C101-C exceeds 1000 V
s Specified from −40 °C to +85 °C and from −40 °C to +125 °C
3. Applications
s Serial-to parallel data conversion
s Remote control holding register
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Philips Semiconductors
74AHC594; 74AHCT594
8-bit shift register with output register
4. Ordering information
Table 1. Ordering information
Type number Package
Temperature
range
74AHC594D
−40 °C to +125 °C
74AHC594DB −40 °C to +125 °C
74AHC594PW −40 °C to +125 °C
74AHC594BQ −40 °C to +125 °C
74AHCT594D −40 °C to +125 °C
74AHCT594DB −40 °C to +125 °C
74AHCT594PW −40 °C to +125 °C
74AHCT594BQ −40 °C to +125 °C
Name
SO16
SSOP16
TSSOP16
DHVQFN16
SO16
SSOP16
TSSOP16
DHVQFN16
Description
Version
plastic small outline package; 16 leads;
body width 3.9 mm
SOT109-1
plastic shrink small outline package; 16 leads;
body width 5.3 mm
SOT338-1
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
SOT403-1
plastic dual in-line compatible thermal enhanced very SOT763-1
thin quad flat package; no leads; 16 terminals;
body 2.5 × 3.5 × 0.85 mm
plastic small outline package; 16 leads;
body width 3.9 mm
SOT109-1
plastic shrink small outline package; 16 leads;
body width 5.3 mm
SOT338-1
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
SOT403-1
plastic dual in-line compatible thermal enhanced very SOT763-1
thin quad flat package; no leads; 16 terminals;
body 2.5 × 3.5 × 0.85 mm
5. Functional diagram
DS
SHCP
SHR
14
11
10
STCP
STR
12
13
8-STAGE SHIFT REGISTER
9
Q7S
8-BIT STORAGE REGISTER
Fig 1. Functional diagram
15 1 2 3 4 5 6 7
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7
mbc320
74AHC_AHCT594_1
Product data sheet
Rev. 01 — 4 July 2006
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
2 of 29
No Preview Available ! |
Philips Semiconductors
74AHC594; 74AHCT594
8-bit shift register with output register
SHCP STCP
11
DS 14
10
12
9
15
1
2
3
4
5
6
7
13
Q7S
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
SHR STR mbc319
Fig 2. Logic symbol
STR 13
STCP 12
10
SHR
11
SHCP
DS 14
R2
C2
R1 SRG8
C1/
1D 2D 15 Q0
1 Q1
2 Q2
3
Q3
4
Q4
5
Q5
6
Q6
7
Q7
9
Q7S
mbc322
Fig 3. IEC logic symbol
DS
SHCP
SHR
STCP
STR
STAGE 0
DQ
FFSH0
CP
R
STAGES 1 TO 6
DQ
STAGE 7
DQ
FFSH7
CP
R
DQ
FFST0
CP
R
DQ
FFST7
CP
R
Q7S
Fig 4. Logic diagram
Q0 Q1 Q2 Q3 Q4 Q5 Q6
Q7 mbc321
74AHC_AHCT594_1
Product data sheet
Rev. 01 — 4 July 2006
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
3 of 29
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