Fairchild Semiconductor TMC2111A, TMC2011A Datasheet
www.fairchildsemi.com
TMC2011A/2111A
Variable-Length Shift Register
Features
• Low power CMOS
• TMC2011A is a pin compatible replacement for the
TDC1011 and TMC2011
• TMC2211A is a pin compatible replacement for the
TMC2111
• Inputs and outputs are TTL compatible
• DC–40MHz clock rate
• Selectable delay lengths (TMC2011A: 3 to 18 stages,
TMC2111A: 1 to 16 stages)
• Special 4-bit wide mixed-delay mode (TMC2011A)
• Available in 24-pin CERDIP and plastic DIP and 28-lead
Plastic Leadless Chip Carrier
Description
The TMC2011A and TMC2111A are high-speed, byte-wide
shift registers with programmable delay lengths.
The TMC2011A can be programmed to any length between
3 and 18 stages. It offers a special split-word mode which
allows for mixed delay lengths. The TMC2011A, constructed in low-power CMOS, is pin and function compatible
with the bipolar TDC1011.
The TMC2111A is a byte-wide shift register that can be programmed to lengths of 1 to 16 stages.
Applications
• Video filtering
• High speed data registers
• Local storage registers
• Digital delay lines
• Television special effects
• Pipeline register
The TMC2011A and TMC2111A are fully synchronous,
with all operations controlled by a single master clock. Input
and output registers are positive-edge triggered D-type flipflops. The length and mode controls are also registered. Both
devices operate with a maximum clock rate of 40 MHz.
Fabricated in a submicron CMOS process, the TMC2011A
and TMC2111A are TTL-compatible, and are available in
24-pin CERDIP and Plastic DIP packages as well as a
28-lead Plastic Leadless Chip Carrier.
Block Diagrams
TMC2011A TMC2111A
3-0
7-4
DI
CLK
7-0
8
3-0
R
L
4
L
R
DI
3-0
L
3-0
MC
CLK
DI
R
1
R
R
R1R
2
L
I
2
4
44
7-4
4
R
3
44
1 of 16 Selector
4
1 of 16 Selector
4
R
3
R
R
16
17
44
4-Bit Wide
4-Bit Wide
R
R
18
44
R
18
444
44
4
R
16
17
DO
4
DO
65-2011A-01
R
1
88
8
8-Bit Wide
1 of 16 Selector
4
R
14
88
R
15
8
R
16
8
65-2011A-02
DO
7-0
Rev. 1.1.0
TMC2011A/2111A PRODUCT SPECIFICATION
Functional Description
The TMC2011A consists of two 4-bit wide, programmable
length shift registers. The TMC2111A consists of a single
8-bit wide, programmable length shift register. The internal
registers of each device share control signals and a common
clock.
Pin Assignments
24 Lead DIP (B2, N2) Packages
DI
1
0
DI
1
DI
2
DI
3
L
0
L
1
V
DD
CLK
DI
4
DI
5
DI
6
12
DI
7
24
DO
DO
DO
DO
L
L
GND
TMC2011A
MC
DO
DO
DO
13
DO
DI
DI
DI
DI
L
L
V
DD
CLK
DI
DI
DI
DI
1
0
1
2
3
0
1
4
5
6
12
7
0
1
2
3
2
3
4
5
6
7
24
TMC2111A
13
65-2011A-03
DO
DO
DO
DO
L
2
L
3
GND
GND
DO
DO
DO
DO
0
1
2
3
4
5
6
7
28 Lead PLCC (R3) Package
DI2DI1DI0DO0DO1DO2DO
128
DI
3
L
0
L
1
V
DD
CLK
DI
NC
4
TMC2011A
7
DI5DI6DI
DO7DO6DO5DO
3
DI2DI1DI0DO0DO1DO2DO
128
NC
L
2
L
3
GND
GND
MC
NC
4
DI
V
DD
CLK
DI
NC
3
L
0
L
1
4
TMC2111A
7
DI5DI6DI
DO7DO6DO5DO
3
4
65-2011A-04
NC
L
2
L
3
GND
GND
MC
NC
2
PRODUCT SPECIFICATION TMC2011A/2111A
Pin Descriptions – TMC2011A
Pin Number
Pin Name
Power
V
DD
GND 18 21,22 Ground. The TMC2011A operates from a single +5V supply. All power
Data Inputs
DI
7-0
Data Outputs
DO
7-0
Controls
CLK 8 9
L
3-0
MC 17 20
78 Supply Voltage. The TMC2011A and operates from a single +5V supply.
12,11,10,
9,4,3,2,1
13,14,15,
16,21,22,
23,24
19,20,6,5 23,24,7,6 Length Select. The length select input is used to determine the register
14,13,12,
10,5,4,3,2
15,16,17,
18,26,27,
28,1
Pin Function DescriptionDIP PLCC
All power and ground lines must be connected.
and ground lines must be connected.
Data Input. Eight inputs are provided for the data, which pass through the
shift register unchanged. The eight inputs on the TMC2011A are divided
into two groups of four bits to allow mixed delay operation. The lengths of
these two groups are different when the Mode Control (MC) is HIGH (see
Table 1). When MC is LOW both groups have equal delays.
Data Output. The outputs of the shift register are delayed relative to the
input signals. The amount of the delay is programmable (see Table 1).
The outputs remain valid for a minimum of t
leading edge of CLK. This allow the data to be latched into circuits with
non-zero hold time requirements.
Master Clock. All inputs and outputs are synchronous and operate from a
single master clock. All operations occur on the rising edge of the master
clock.
delay of the TMC2011A. This input is registered and affects the output t
after the clock edge after it is input to the device (see Timing Diagram).
Delay lengths are specified in Table 1.
Mode Control. The Mode Control is used to select the special 4-bit wide
split mode. When HIGH, the delay on DO
DO
have the delay specified by the length select. When MC is LOW, all
3-0
eight bits have equal delays as specified by the length select.
nanoseconds after the
HO
is fixed at 18 stages, while
7-4
DO
3
TMC2011A/2111A PRODUCT SPECIFICATION
Pin Descriptions – TMC2111A
Pin Number
Pin Name
Power
V
DD
GND 17,18 20,21,22 Ground. The TMC2111A operates from a single +5V supply. All power
Data Inputs
DI
7-0
Data Outputs
DO
7-0
Controls
CLK 8 9
L
3-0
78 Supply Voltage. The TMC2111A operates from a single +5V supply. All
12,11,10,
9,4,3,2,1
13,14,15,
16,21,22,
23,24
19,20,6,5 23,24,7,6 Length Select. The length select input is used to determine the register
14,13,12,
10,5,4,3,2
15,16,17,
18,26,27,
28,1
Pin Function DescriptionDIP PLCC
power and ground lines must be connected.
and ground lines must be connected.
Data Input. Eight inputs are provided for the data, which pass through the
shift register unchanged. The TMC2111A consists of a single group of
eight bits with all data bits having equal delays.
Data Output. The outputs of the shift register are delayed relative to the
input signals. The amount of the delay is programmable (see Table 1).
The outputs remain valid for a minimum of t
leading edge of CLK. This allow the data to be latched into circuits with
non-zero hold time requirements.
Master Clock. All inputs and outputs are synchronous and operate from a
single master clock. All operations occur on the rising edge of the master
clock.
delay of the TMC2111A. This input is registered and affects the output t
after the clock edge after it is input to the device (see Timing Diagram).
Delay lengths are specified in Table 1.
nanoseconds after the
HO
DO
Table 1. Programming Length Controls
TMC2011A
TMC2111AInput Code Mode (MC) =0 Mode (MC) =1
L
L
3
0000333181
0001444182
0010555183
0011666184
0100777185
0101888186
0110999187
0 1 1 1 10 10 10 18 8
1 0 0 0 11 11 11 18 9
1 0 0 1 12 12 12 18 10
1 0 1 0 13 13 13 18 11
1 0 1 1 14 14 14 18 12
1 1 0 0 15 15 15 18 13
1 1 0 1 16 16 16 18 14
1 1 1 0 17 17 17 18 15
1 1 1 1 18 18 18 18 16
L
2
L
1
DO
0
Length DO
3-0
Length DO
7-4
Length DO
3-0
Length DO
7-4
7-0
Length
4
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